Tolevamer

 

(57) Abstract:

Use: to measure fuel in weight units. Essence: tolevamer contains sensor fuel 1, termodinamik 2, the generator 3, the bridge circuit 4, the low pass filter 5, scheme 6, 9 convert volumetric flow rate fuel mass, the flow meter 7, the sensor 8, the volumetric flow rate control device 10 initial mass of fuel 10, unit 11 constant values, the evaluator fuel 12, an electronic amplifier 13 and the indicator 14. 6 C.p. f-crystals, 7 Il.

The invention relates to the instrument and is intended for measurement of fuel in weight units.

Well-known aviation tolevamer containing capacitive sensor, large capacity, resistors adjust the zero of the sum of all tanks,adjust the zero tank, adjust the maximum amounts of all tanks, adjustment of the maximum supply tank, and tank and resistors form a measuring bridge which serves as the error term for the tracking system, consisting of an amplifier, motor and potentiometer and tracked on the pointer of the fuel, the operating mode of the bridge manages a chain of alarm, relay and switch [1].

Not what the surrounding area fuel temperature and accuracy characteristics of capacitive sensors.

Closest to the invention to the technical essence and the achieved effect is toplevelmenu part of the system tolevamer the flow containing capacitive sensors placed in the fuel tanks, bridge circuit, termodinamik, the high-frequency generator, the control circuit scan, consisting of a clock generator, the pulse distributor, the first counter and the first circuit of the linear decoding Converter, a method of forming the signal of the fuel consisting of a detector equilibrium, shaper pulses census, functional digital Converter, a second counter, a register, and the second circuit linear decoding of the transducer, forming unit, the comparator, the control device, the device reserve balance, block amplifiers, index, and capacitive sensors, termodinamik, the high-frequency generator and control circuit of the sweep connected with the bridge circuit, the output of which is through the method of forming the signal of the fuel is connected with a power amplifier, the output of which is connected with the pointer, the output of the pulse distributor is connected to the input of the digital functional pream control, the outputs of the register and the second linear decoding of the Converter are connected respectively to the inputs of the control unit and the comparator, and the output of the second counter with the input device reserve balance [2].

The disadvantage of this toplevelmenu system parts tolevamer-flow meter is not accurate, due to the accumulation over time of measurement errors capacitive sensors, the neglect of their accuracy characteristics and information about mass consumption.

The purpose of the invention is to improve the accuracy of measurement of the fuel.

The objective is achieved by the fact that in tolevamer containing the sensor of fuel, termodinamik, the high-frequency generator whose output is connected to the input of the bridge circuit, an electronic amplifier, the output of which is connected with the pointer, additionally introduced evaluator fuel, low pass filter, the mapping of the volume of the fuel mass flow, volumetric flow sensor, mapping volumetric flow to mass-unit initial mass of fuel, the generator constant values, and the first, second, third, fourth, fifth, sixth, seventh, eighth, the ninth input transmitter supply of fuel connected SOA constant values, the tenth input vicites fuel load connected to the output of the circuit converting the amount of fuel mass, the entrance of which is connected through a low pass filter with the output of the bridge circuit, the eleventh sign of vicites fuel connected to the flow meter, the twelfth input transmitter supply of fuel is connected to the output of the circuit convert volumetric flow to mass, the entrance of which is connected to the output of the sensor volume flow, the thirteenth input transmitter supply of fuel is connected with the output of the unit initial mass of fuel and the output to the input e of the amplifier.

In addition, the evaluator fuel contains first, second, third, fourth and fifth solvers, and the first input transmitter supply of fuel is connected with the first inputs respectively of the first, second, third solvers, the second input is connected to the second inputs respectively of the first, second, third solvers, the third input is connected to third inputs respectively of the first and second calculators, the fourth input is connected to the fourth inputs, respectively, of the second and third calculators, the fifth input is connected to fifth inputs, respectively, of the second, third, and fifth solvers, the sixth input hundredth and fifth calculators, the eighth input is connected to the first inputs respectively the fourth and fifth solvers, the ninth input is connected to the ninth input of the fifth transmitter, the tenth input is connected to the fourth inputs, respectively, the fourth and fifth solvers, the eleventh input is connected to the sixth input, respectively, the fourth and fifth calculators, twelfth input is connected to the eighth input of the fifth transmitter, the thirteenth input is connected to the eighth input of the fourth transmitter, the output of the first calculator connected to the third input of the fourth and the eighth input of the second processors, the first output of the second transmitter is connected to the fourth input of the first and the fifth input of the fourth calculators, the second output of the second transmitter is connected to the sixth input of the third and the third input of the fifth solvers, the third output of the second transmitter is connected to the fifth input of the first transmitter, the first output of the third computer is connected to the sixth input of the second transmitter, the second output of the third computer is connected to sedmimi inputs respectively of the second and fifth calculators, fourth transmitter is connected to the output of the transmitter fuel, and the tenth sign of the fifth transmitter, the output of which connect the adders, the first integrator, the first, second, third, fourth and fifth multipliers, and the first input of the first transmitter connected to the first inputs of the second multiplier and the first integrator, a second input is connected to a second input of the fourth multiplier, a third input connected to the first input of the first multiplier, the fourth input is connected to the first and second inputs of the third multiplier and the fifth input is connected to the first and second inputs of the first adder, the output of which is connected to the first input of the second adder, the second and third inputs connected to the outputs respectively of the second and fourth multipliers, the output of the third multiplier connected to the first input of the fourth multiplier, the output of the second adder is connected to the second input of the first integrator, the output of which is connected to a second input of the first multiplier, the output of which is connected to the output of the first transmitter, the first and second inputs of the fifth multiplier, the output of which is connected to a second input of the second multiplier.

In addition, the second computer includes a third adder, a second integrator, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth multipliers, and the first input of the second transmitter is connected to the first input of the input of the seventh multiplier, the fourth input is connected to a second input of the twelfth multiplier, the fifth input is connected to a second input of the sixth multiplier, the sixth input is connected to the first input of the second adder, the seventh input is connected to a second input of the tenth multiplier, the eighth input is connected to a second input of the eighth multiplier, the output of the sixth multiplier is connected to a second input of the second adder, the outputs of the ninth and eleventh multipliers connected respectively to the third and fourth inputs of the second adder, the output of which through a second integrator connected to the third output of the second transmitter, the first inputs, respectively, of the sixth, seventh and twelfth multipliers, the output of the eighth multiplier connected to the first input of the ninth multiplier, the output of the seventh multiplier connected to the second output of the second transmitter and the second input of the ninth multiplier, the output of the twelfth multiplier connected to the first output of the second transmitter and the second input of the eleventh multiplier.

In addition, a third evaluator contains the fourth and fifth adders, the third integrator, the thirteenth, fourteenth, fifteenth, sixteenth, seventeenth and eighteenth multipliers, and the first input of the third evaluator, magtataho multiplier and the third integrator, the third input is connected to the first input of the fifth adder, the fourth input is connected to the first input of the fourteenth multiplier, the fifth input is connected to the first input of the thirteenth multiplier, the sixth input is connected to the first and second inputs of the sixteenth multiplier, the outputs of the thirteenth, sixteenth and seventeenth multipliers connected respectively with the second, third and fourth inputs of the fifth adder, the output of which is connected to a second input of the third integrator, the output of which is connected to a second input of the fourteenth multiplier, first and second inputs of the fourth adder, the output of which is connected to a second input of the thirteenth multiplier, the output of the fourteenth multiplier connected to the output of the third evaluator, the first and second inputs of the fourth adder, the output of which is connected to a second input of the thirteenth multiplier, the output of Chatyrdag - catego multiplier connected to the output of the third computer, the first and second inputs of the eighteenth multiplier, the output of which is connected to a second input of the seventeenth multiplier.

In addition, the fourth transmitter includes sixth, seventh, eighth adders, the fourth integrator, nineteenth, twentieth, twenty-first, twenty-utoro, the second input is connected to a second input of the nineteenth multiplier, the third input is connected to a second input of the twentieth multiplier, the fourth input is connected to a second input of the sixth adder, the fifth input is connected to a second input of the twenty-second multiplier, the sixth input is connected to a second input of the eighth adder, the seventh input is connected to the first input of the twenty-first multiplier and a second input of the seventh adder, with the first and third inputs of which are connected respectively to the outputs of the twentieth and twenty-second multipliers, the output of the seventh adder through the fourth integrator connected to the output of the fourth evaluator and the first input of the nineteenth multiplier, the output of which is connected to the first input of the sixth adder, the output of which is connected to the first input of the sixth adder, the output of which is connected to the first input of the twentieth multiplier. The output of the twenty-first multiplier connected to the first input of the eighth adder, the output of which is connected to the first input of the twenty-second multiplier.

In addition, the fifth evaluator contains the ninth, tenth, eleventh adders, the fifth integrator, twenty third, twenty fourth, twenty fifth, twenty-sixth, twenty-seventh, twenty is noites, the second input is connected to a second input of the twenty-fifth multiplier, the third input is connected to a second input of the twenty-sixth multiplier, the fourth input is connected to a second input of the tenth adder, the fifth input is connected to a second input of the twenty-third multiplier, the sixth input is connected to a second input of the eleventh adder, the seventh input is connected to a second input of the twenty-eighth multiplier, the eighth input is connected to a second input of the twenty-fourth multiplier, the ninth input is connected to the first input of the twenty-fourth multiplier, the tenth input is connected to the first input of the twenty-fifth multiplier, the outputs of the twenty-third, twenty-fourth, twenty-sixth, twenty-eighth multipliers connected respectively to the first, second, third and fourth inputs of the ninth adder, the output of which through the fifth integrator connected to the output of the fifth transmitter and first inputs, respectively, of the twenty-third and twenty-seventh multipliers, the outputs of the twenty-fifth and twenty-seventh multipliers are connected with the first inputs, respectively, of the tenth and eleventh adders, the outputs of which are connected with the first inputs, respectively, of the twenty-sixth and twenty-eighth multipliers.

In Fig.1 depicts a block diagram of tolevamer; Fig.2 is a block diagram of the transmitter of fuel; Fig.3 is a block diagram of the first transmitter; Fig.4 is a block diagram of a second transmitter of Fig.5 is a block diagram of a third transmitter of Fig.6 is a block diagram of the fourth transmitter of Fig.7 is a block diagram of the fifth evaluator.

Tolevamer contains sensor 1 fuel, termodinamik 2, the generator 3 high frequency bridge circuit 4, the filter 5 low frequencies, the circuit Converter 6 fuel volume, weight, flow meter 7, the sensor 8 volumetric flow rate chart 9 convert volumetric flow to mass, unit 10 initial mass of fuel, unit 11 constant values, the transmitter 12 of the fuel, electronic amplifier 13, the indicator 14. The first, second, third, fourth, fifth, sixth, seventh, eighth, ninth input of the transmitter 12 of the fuel are connected respectively to the first, second, third, fourth, fifth, sustiva connected to the output of the circuit 6 conversion of fuel volume in the mass, the entrance of which is connected through a filter 5 low frequencies with the output of the bridge circuit 4, the eleventh sign of the transmitter 12 of the fuel is connected to the flow meter 7, the twelfth sign of the transmitter 12 of the fuel is connected to the output of the circuit 9 convert volumetric flow to mass, the entrance of which is connected to the output of the sensor 8 volumetric flow rate, the thirteenth sign of the transmitter 12 of the fuel is connected to the output of generator 10 initial mass of fuel. The outputs of the sensor 1 fuel, Termodinamika 2, generator 3 high frequency are connected respectively to the first, second, and third inputs of the bridge circuit 4. The output of the transmitter 12 of the fuel through an electronic amplifier 13 is connected to the indicator 14.

The transmitter 12 fuel contains the first 15, second 16, 17 third, fourth, 18, 19 fifth evaluator. The first input of the transmitter 12 of the fuel is connected with the first inputs, respectively, of the first 15, second 16, third 17 calculators, the second input is connected to the second inputs respectively of the first 15, second 16, third 17 calculators, the third input is connected to third inputs, respectively, of the first 15 and second 16 calculators, the fourth input is connected to the fourth inputs, respectively, of the second 16 and third is slitely, the third input is connected to third inputs, respectively, of the first 15 and second 16 calculators, the fourth input is connected to the fourth inputs, respectively, of the second 16 and third 17 calculators, the fifth input is connected to fifth inputs, respectively, of the second 16, third 17 and 19 fifth solvers, the sixth input is connected to the third input of the third transmitter 17, the seventh input is connected to the second inputs respectively 18 fourth and fifth 19 solvers, the eighth input is connected to the first inputs respectively 18 fourth and fifth 19 solvers, the ninth input is connected to the ninth input of the fifth calculator 19, the tenth input is connected to the fourth inputs respectively 18 fourth and fifth 19 solvers, the eleventh input is connected to the sixth inputs respectively 18 fourth and fifth 19 calculators, twelfth input is connected to the eighth input of the fourth computer 18, the output of the first transmitter 15 is connected to the third input of the fourth 18 and the eighth input of the second 16 calculators, the first output of the second transmitter 16 is connected to the fourth input of the first 15 and the fifth input of the fourth 18 solvers, the second output of the second transmitter 16 is connected to the sixth input of the third 17 and the third input of the fifth 19 vychislitelaaunoi 17 is connected to the sixth input of the second transmitter 16, the second output of the third transmitter 17 is connected to sedmimi inputs, respectively, of the second 16 and 19 fifth solvers, the fourth computer 18 is connected to the output of the transmitter 12 of the fuel and the tenth sign of the fifth calculator 19, the output of which is connected to the seventh input of the fourth computer 18.

The first computer 15 includes the first 20, 21 second adders, the first integrator 22, the first 23 and second 24, third 25, 26 fourth and fifth 27 multipliers. And the first input of the first transmitter 15 is connected with the first inputs of the second multiplier 24 and the first integrator 22, the second input is connected to a second input of the fourth multiplier 26, a third input connected to the first input of the first multiplier 23, the fourth input is connected to the first and second inputs of the third multiplier 25, and the fifth input from the first and second inputs of the first adder 20, the output of which is connected to the first input of the second adder 21, the second and third inputs connected to the outputs respectively of the second 24 and fourth 26 multipliers, the output of the third multiplier 25 is connected to the first input of the fourth multiplier 26, the output of the second adder 21 is connected to a second input of the first integrator 22, the output of which is connected to a second input of the first annoited which is connected to a second input of the second multiplier 24.

The second transmitter 16 includes a third adder 29, the second integrator 30, 28 sixth, seventh, 31, 32 eighth, ninth, 33, 34 tenth, eleventh 35, twelfth 36 multipliers. And the first input of the second transmitter 16 is connected to the first input of the eighth multiplier 32, a second input connected to the first input of the tenth multiplier 34, the third input is connected to a second input of the seventh multiplier 31, the fourth input is connected to a second input of the twelfth multiplier 36, the fifth input is connected to a second input of the sixth multiplier 28, a sixth input connected to the first input of the third adder 29, the seventh input is connected to a second input of the tenth multiplier 34, the eighth input is connected to a second input of the eighth multiplier 32, the output of the sixth multiplier 28 is connected to a second input of the third adder 29, the outputs of the ninth 33 and eleventh 35 multipliers connected respectively to the third and fourth inputs of the third adder 29, the output of which through the second integrator 30 is connected to the third input of the second transmitter 16, the first inputs, respectively, of the sixth 28, 31 seventh and twelfth 36 multipliers, the output of the eighth multiplier 32 is connected to the first input of the ninth multiplier 33, the output of the tenth multiplier 34 is connected to the first input of odinnadcatogo the ninth multiplier 33, the output of the twelfth multiplier 36 is connected to the first output of the second transmitter 16 and a second input of the eleventh multiplier 35.

The third evaluator 17 contains 37 fourth and fifth 39 adders, the third integrator 40, the thirteenth 38, fourteenth 41, fifteenth 42, sixteenth 43, seventeenth 44 and eighteenth 45 multipliers. The first input of the third transmitter 17 is connected to the first input of the sixteenth multiplier 43, and the second input is connected with the first inputs, respectively, of the seventeenth multiplier 44 and the third integrator 40, a third input connected to the first input of the fifth adder 39, the fourth input is connected to the first input of the thirteenth multiplier 38, the sixth input is connected to the first and second inputs of the fifteenth multiplier 42, the output of which is connected to a second input of the sixteenth multiplier 43, the outputs of the thirteenth 38, sixteenth 43 and seventeenth 44 multipliers connected respectively with the second, third and fourth inputs of the fifth adder 39, the output of which is connected to a second input of the thirteenth multiplier 38, the output of the fourteenth multiplier 41 is connected to the output of the third transmitter 17, the first and second inputs of the eighteenth multiplier 45, the output of which is connected to a second input semnadtsaty integrator 50, nineteenth 46, twentieth 48, the twenty-first 51, 53 twenty-second multipliers. Moreover, the first input of the fourth computer 18 is connected to a second input of the twenty-first multiplier 51, the second input is connected to a second input of the nineteenth multiplier 46, the third input is connected to a second input of the twentieth multiplier 48, the fourth input is connected to a second input of the sixth adder 47, the fifth input is connected to a second input of the twenty-second multiplier 53, the sixth input is connected to a second input of the eighth adder 52, the seventh input is connected to the first input of the twenty-first multiplier 51 and a second input of the seventh adder 49, with first and third inputs of which are connected respectively to the outputs of the twentieth 48 and 53 twenty-second multipliers, the output of the seventh adder 49 through the fourth integrator 50 is connected to the fourth output of the transmitter 18 and the first input of the nineteenth multiplier 46, the output of which is connected to the first input of the sixth adder 47, the output of which is connected to the first input of the twentieth multiplier 48, the output of the twenty-first multiplier 51 is connected to the first input of the eighth adder 52, the output of which is connected to the first input of the twenty-second multiplier 53.

The fifth calculator 19 contains the ninth 55, de is 58, twenty-sixth 60, the twenty-seventh 61, the twenty-eighth 63 multipliers. Moreover, the first input of the fifth calculator 19 is connected to a second input of the twenty-seventh multiplier 61, the second input is connected to a second input of the twenty-fifth multiplier 58, the third input is connected to a second input of the twenty-sixth multiplier 60, the fourth input is connected to a second input of the tenth adder 59, the fifth input is connected to a second input of the twenty-third multiplier 54, the sixth input is connected to a second input of the eleventh adder 62, the seventh input is connected to a second input of the twenty-ninth multiplier 63, the eighth input is connected to a second input of the twenty-fourth multiplier 57, the ninth input is connected to the first input of the twenty-fourth multiplier 57, the tenth input is connected to the first input of the twenty-fifth multiplier 58, the outputs of the twenty-54 third, twenty-fourth 57, twenty-sixth 60, twenty-ninth 63 multipliers connected respectively to the first, second, third and fourth inputs of the ninth adder 55, the output of which through the fifth integrator 56 is connected to the output of the fifth calculator 19 and first inputs, respectively, of the twenty-third 54 and twenty-seventh multipliers 61, the outputs 58 and the twenty-fifth twenty-seventh 61 cleverly is uedineny with the first inputs, respectively, of the twenty-sixth 60 and the twenty-ninth 63 multipliers.

Blocks 1-4 are taken without change from the prototype [2].

Unit 11 constant values is a block of nine potentiometers, powered by the stabilized voltage, unit 10 initial mass of fuel is a potentiometer with cremalleras fed stabilized voltage.

Filter 5 low frequency, as well as scheme 6 conversion of fuel volume in the mass and scheme 9 convert volumetric flow to mass representing amplifiers with variable gain, which is determined by the density of the fuel and is set using cremallera known. The sensor 8 volumetric flow potentiometric type with a linear characteristic, the slider of which is mechanically connected to the control lever of the engine (ORE) and is used for issuing through the circuit 9 convert volumetric flow to mass signal * proportional to fuel consumption and satisfy the equation

*=+, (1) where is the angle of the metering needle;

- fluctuation error of the sensor with a known variance2.

Fuel: G, kg, tanks, aircraft and the mass flow rate of fuel Q kg-1satisfy the following system of differential is ostalnogo crane engine.

Information about the fuel received from the sensor 1, is determined by the equality

Z1=G+KtG +t, (3) where Kt- priori known factor;

t- fluctuation component of the output signal of the sensor 1 with a known dispersion r1.

The output signal of the flow meter 7 is represented in the form

Z2= Q + KpQ +Ap, (4) where Kp- priori known factor that determines slowly changing error of the flow meter;

p- fluctuation component of the output signal of the sensor flow meter with a known dispersion r2.

On the basis of the formulas(1), (2), (3), (4) in this technical solution to improve the measurement accuracy of the fuel selected algorithm, (5) which fully considers the precision characteristics of the used sensors and providing processing information from the existing sensor 1 fuel and the flow meter 7 and the sensor 9 volumetric flow.

= -+K11(Z1-d)+K12(Z2l);

= -a+a2*+K21(Z1-d), (5)

= -2P12+r1K211+r2= -P22-a1P12+r1K11K21+r2K22K12;

= -2a 22(0) = r2where is derived from estimates of fuel;

- evaluation of fuel;

- derived from estimates of fuel consumption;

TO11=1P11TO12=2P12TO21=1P12TO22=2P22the weighting coefficients;

1= dr1-1,2=lr2-1d1=1+Ktl = 1+Kp- constant coefficients;

P11, R12, R22, R21elements of the correlation matrix of the errors of estimation;

P11(O), R22(O) is the initial value of the variance of the estimates of fuel and the mass flow of fuel.

Grequest- initial mass of the fuel.

Tolevamer works as follows.

On the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth potentiometer knob 11 constant values are set voltage, proportional respectively to the values of the variances of r1and r2constant coefficients1and2the setting of the throttle valve and1, dispersion2constant coefficients d and l, the setting of the throttle valve and2which respectively through the first, second, third, fourth, first, the second, third, fourth, fifth, sixth, seventh, eighth and ninth input of the transmitter 12 of the fuel, on the potentiometer knob 10 initial mass of the fuel exhibits a voltage proportional to the initial mass of the charged fuel Grequestcoming to the thirteenth sign of the transmitter 12 of the fuel.

A signal proportional to a stock of fuel from the output of the sensor 1 fuel is supplied to the first output of the bridge circuit 14, the second and third inputs of which receive respectively the temperature correction from termodinamica 2 and the high-frequency signal generator 3 high frequency. The output signal from the bridge circuit 4 is fed to the input of the filter 5 low frequency, the output of which is formed an analog signal that is proportional to the amount of fuel supplied to the circuit 6 conversion of fuel volume in the mass by introducing amendments proportional to the fuel densityabout. With the output of the circuit 6 conversion of fuel volume in the mass signal Z1comes on the tenth input of the transmitter 12 of the fuel. The signal Z2proportional to the mass flow of fuel from the output of the flow meter 7 is supplied to the eleventh sign of the transmitter 12 of the fuel.

The signal is obrazovaniya volumetric flow rate in mass by introducing amendments proportional to the fuel densityabout.. With the output of the circuit 9 convert volumetric flow to mass signal * arrives at the twelfth sign of the transmitter 12 of the fuel, the output of which a signal proportional stock fuel G, through an electronic amplifier 13 is supplied to the indicator 14.

The signal r1with the first input of the transmitter 12 of the fuel supplied to the first inputs, respectively, of the first 15, second 16 and third 17 calculators. The signal r2with the second input of the transmitter 12 of the fuel supplied to the second inputs respectively of the first 15, second 16, third 17 multipliers. Signal1the third input of the transmitter 12 of the fuel supplied to the third inputs, respectively, of the first 15 and second 16 calculators. Signal2from the fourth input of the transmitter 12 of the fuel supplied to the fourth inputs, respectively, of the second 16 and third 17 calculators. The signal and1from the fifth input of the transmitter 12 of the fuel supplied to the fifth input, respectively, of the second 16, third 17 and 19 fifth solvers. Signal2from the sixth input of the transmitter 12 of the fuel supplied to the third input of the third transmitter 17. The signal d from the seventh input of the transmitter 12 of the fuel settlement calculator 12 of the fuel supplied to the ninth input of the fifth calculator 19. The signal Z1with the tenth sign of the transmitter 12 of the fuel supplied to the fourth inputs respectively 18 fourth and fifth 19 solvers. The signal Z2from the eleventh sign of the transmitter 12 of the fuel supplied to the sixth input, respectively 18 fourth and fifth 19 solvers. Signal * from the twelfth sign of the transmitter 12 of the fuel supplied to the eighth input of the fifth calculator 19. The signal Grequestfrom the thirteenth sign of the transmitter 12 of the fuel supplied to the eighth input of the fourth computer 18. With the release of the first transmitter 15 a signal11is supplied to the eighth input of the second transmitter 16 and the third input of the fourth computer 18, the output of which the signal G11output of the transmitter 12 of the fuel and on the tenth sign of the fifth calculator 19. From the first output of the second transmitter 16 a signal12is supplied to the fourth input of the first transmitter 15 and the fifth input of the fourth computer 18, with the second output of the transmitter 16 a signal21is supplied to the sixth input of the third transmitter 17 and the third input of the fifth calculator 19, the third output of the transmitter 16, the signal R12is supplied to the fifth input of the first transmitter 15. From the first output of the third transmitter 17 sa seventh input of the second transmitter and the seventh input of the fifth calculator 19, output which signal is supplied to the seventh input of the fourth computer 18.

The signal R12from the fifth input of the first transmitter 15 is supplied to the first and second inputs of the first adder 20, the output of which the signal 2P12goes to the first inverted input of the second adder 21. The signal r1with the first input of the first transmitter 15 is supplied as initial conditions to the first input of the first integrator 22 and the first input of the second multiplier 24, the output of which the signal r1TO112supplied to the second input of the second adder 21.

A signal12from the fourth input of the first multiplier 15 is supplied to the first and second inputs of the third multiplier 25, the output of which a signal122arrives at the first input of the fourth multiplier 26, the second input with the second input of the first computer 15 receives the signal r2. From the output of the fourth multiplier 26 signal r2K122supplied to the third input of the second adder 21, the output of which the signal = -2P12+r1K211+ +r2K122supplied to the second input of the first integrator 22. The output of the first integrator 22, a signal is generated P11= (-2P12+r111output of the first multiplier 23 and the first and second inputs of the fifth multiplier 27, the output of which a signal112supplied to the second input of the second multiplier 24.

The signals r1from the first entrance and r2with the second input of the second transmitter 16 are received at the first inputs respectively 32 eighth and tenth multipliers 34. Signals1the third entrance and a2from the fourth input of the second transmitter 16 is supplied to the second inputs respectively 31 seventh and twelfth 36 multipliers. The signal R22from the sixth input of the second transmitter 16 is supplied to the first inverted input of the third adder 29. Signals22the seventh sign and11the eighth input of the second transmitter 16 receives on the second input, respectively, of the tenth 34 and 32 eighth multipliers. From the output of the eighth multiplier 32 signal r1K11arrives at the first input of the ninth multiplier 33, the output of which the signal r1K11K21supplied to the third input of the third adder 29. With the tenth multiplier 34 signal r2K22arrives at the first input of the eleventh multiplier 35, the output of which the signal r2K22K12entered n/SUB>K21+r2K22K12is fed to the input of the second integrator 30, the output of which a signal is generated P12= (-P22-a1P12+r1K21+r2K22)dt arriving at the third exit

the second transmitter 16 and first inputs, respectively, of the sixth 28, 31 seventh and twelfth 36 multipliers. A signal21from the output of the seventh multiplier 31 is supplied to the second input of the ninth multiplier 33 and the second output of the second transmitter 16. A signal12from the output of the twelfth multiplier 36 is supplied to the second input of the eleventh multiplier 35 and to the first output of the second transmitter 16.

The signal r1with the first input of the third transmitter 17 is supplied to the first input of the sixteenth multiplier 43, the output of which the signal r1K212supplied to the third input of the fifth adder 39. The signal r2with the second input of the third transmitter 17 is supplied as initial conditions to the first input of the third integrator 40 and the first input of the seventeenth multiplier 44, the output of which the signal r2K222is supplied to the fourth input of the fifth adder 39. Signal2the third input of the third transmitter 17 is supplied to the first input of the fifth adder 39. the 41, since the output of which a signal22output through the third transmitter 17 and the first and second inputs of the eighteenth multiplier 45. A signal222output eighteenth multiplier 45 is supplied to the second input of the seventeenth multiplier 44. The signal and1from the fifth input of the third transmitter 17 is supplied to the first input of the thirteenth multiplier 38, the output of which the signal 2A1P22supplied to the second inverted input of the fifth adder 39.

A signal21from the sixth input of the third transmitter 17 is supplied to the first and second inputs of the fifteenth multiplier 42, the output of which a signal212supplied to the second input of the sixteenth multiplier 43. Signal = -2a1P22+r1K221+r22from the output of the fifth adder 39 is supplied to the second input of the third integrator 40, the output of which a signal is generated = (-2a1P22+r12)dt , supplied to the second input of the fourteenth multiplier 41 and the first and second inputs of the fourth adder 37, the output of which the signal 2P22supplied to the second input of the thirteenth multiplier 38.

The signal l from the first input of the fourth computer 18 is supplied to the second input dvadtsatiy d with the second input of the fourth computer 18 is supplied to the second input of the nineteenth multiplier 46, since the output of which the signal d is supplied to the first inverted input of the sixth adder 47. A signal11the third input of the fourth computer 18 is supplied to the second input of the twentieth multiplier 48, the output of which the signal K11(Z1-d) is supplied to the first input of the seventh adder 49. The signal Z1from the fourth input of the fourth computer 18 is supplied to the second input of the sixth adder 47, the output of which the signal (Z1-d) is supplied to the first input of the twentieth multiplier 48. A signal12from the fifth input of the fourth computer 18 is supplied to the second input of the twenty-second multiplier 53, the output of which the signal K12(Z2-l) is supplied to the third input of the seventh adder 49. The signal Z2from the sixth to the fourth input of the transmitter 18 is supplied to the second input of the eighth adder 52, the output of which the signal (Z2l) arrives at the first input of the twenty-second multiplier 53. The signal Q from the seventh to the fourth input of the transmitter 18 is supplied to the first input of the twenty-first multiplier 51 and the second inverted input of the seventh adder 49, the output of which the signal = -+K11(Z1-d)+K12(Z2-l) is fed to the input of the fourth integrator 50. From the output of the fourth integrator 50 signal = -+K11(Zis Italia 18.

The signal and1from the fifth input of the fifth calculator 19 is supplied to the second input of the twenty-third multiplier 54, the output of which the signal a is supplied to the first inverted input of the ninth adder 55. Signals and2and * respectively with the ninth sign and the eighth input of the fifth calculator 19 receives respectively on the first and second inputs of the twenty-fourth multiplier 57, the output of which the signal and2* goes to the second input of the ninth adder 55. Signals and d, respectively, with the tenth input and the second input of the fifth calculator 19 is supplied respectively to the first and second inputs of the twenty-fifth multiplier 58, the output of which the signal d is supplied to the first inverted input of the tenth adder 59. The signal Z1from the fourth input of the fifth calculator 19 is supplied to the second input of the tenth adder 59, the output of which the signal (Z1-d) is supplied to the first input of the twenty-sixth multiplier 60. A signal21the third input of the fifth calculator 19 is supplied to the second input of the twenty-sixth multiplier 60, the output of which the signal K21(Z-d) is supplied to the third input of the ninth adder 55. The signal l from the first input of the fifth calculator 19 is supplied to the second input of the twenty-seventh multiplier 61, the output is input to the fifth calculator 19 is supplied to the second input of the eleventh adder 62, since the output of which the signal (Z2l) arrives at the first input of the twenty-eighth multiplier 63. A signal22from the seventh input of the fifth calculator 19 is supplied to the second input of the twenty-eighth multiplier 63, the output of which the signal K22(Z2-l) is supplied to the fourth input of the ninth adder 55. Signal = a+a2*+K21(Z1-d) is fed to the input of the fifth integrator 56, the output of which a signal is generated = [-a+a2*+K21(Z1-d)dt input to the output of the fifth calculator 19 and first inputs, respectively, of the twenty-third 54 and twenty-seventh multipliers 61.

The use of the invention allows to improve the accuracy of measuring the remaining fuel.

1. TOLEVAMER containing connected to the bridge circuit of the sensor supply of fuel, termodinamik and the high-frequency generator, and connected in series electronic amplifier and indicator, characterized in that, to improve measurement accuracy, it introduced the unit constant values, the evaluator fuel output connected to the input of an electronic amplifier, connected in series low pass filter input connected to the output of the bridge is the initial mass of the fuel, connected in series sensor volumetric flow rate fuel mass, the first, second, third, fourth, fifth, sixth, seventh, eighth and ninth output unit constant values connected to respective inputs of the transmitter fuel, and its tenth , eleventh, twelfth and thirteenth inputs connected respectively to the outputs of the first circuit converting the volumetric fuel consumption, mass flow meter, the second circuit converting the volumetric fuel consumption mass and unit initial mass of fuel.

2. Tolevamer under item 1, characterized in that the transmitter fuel contains first, second, third, fourth and fifth solvers, and the first input transmitter supply of fuel is connected with the first inputs respectively of the first, second and third calculators, the second input is connected to the second inputs respectively of the first, second, third solvers, the third input is connected to third inputs respectively of the first and second calculators, the fourth input is connected to the fourth inputs, respectively, of the second and third calculators, the fifth input is connected to fifth inputs, respectively, of the second, third, and fifth calculators, sixth, the fourth and fifth calculators, the eighth input is connected to the first inputs respectively the fourth and fifth solvers, the ninth input is connected to the ninth input of the fifth transmitter, the tenth input is connected to the fourth inputs, respectively, the fourth and fifth solvers, the eleventh input is connected to the sixth input, respectively, the fourth and fifth calculators, twelfth input is connected to the eighth input of the fifth transmitter, the thirteenth input is connected to the eighth input of the fourth transmitter, the output of the first calculator connected to the third input of the fourth and the eighth input of the second processors, the first output of the second transmitter is connected to the fourth input of the first and the fifth input of the fourth calculators, the second output of the second transmitter is connected to the sixth input of the third and the third input of the fifth solvers, the third output of the second transmitter is connected to the fifth input of the first transmitter, the first output of the third computer is connected to the sixth input of the second transmitter, the second output of the third computer is connected to sedmimi inputs respectively of the second and fifth calculators, fourth transmitter is connected to the output of the transmitter fuel, and the tenth sign of the fifth transmitter, the output of which compounds ITIL contains a first the second adders, the first integrator, the first, second, third, fourth and fifth multipliers, and the first input of the first transmitter connected to the first inputs of the second multiplier and the first integrator, a second input is connected to a second input of the fourth multiplier, a third input connected to the first input of the first multiplier, the fourth input is connected to the first and second inputs of the third multiplier and the fifth input is connected to the first and second inputs of the first adder, the output of which is connected to the first input of the second adder, the second and third inputs connected to the outputs respectively of the second and fourth multipliers, the output of the third multiplier connected to the first input of the fourth multiplier, the output of the second adder is connected to the second input of the first integrator, the output of which is connected to a second input of the first multiplier, the output of which is connected to the output of the first transmitter, the first and second inputs of the fifth multiplier, the output of which is connected to a second input of the second multiplier.

4. Tolevamer under item 2, wherein the second computer includes a third adder, a second integrator, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth multipliers, and the first photogo multiplier, the third input is connected to a second input of the seventh multiplier, the fourth input is connected to a second input of the twelfth multiplier, the fifth input is connected to a second input of the sixth multiplier, the sixth input is connected to the first input of the second adder, the seventh input is connected to a second input of the tenth multiplier, the eighth input is connected to a second input of the eighth multiplier, the output of the sixth multiplier is connected to a second input of the second adder, the outputs of the ninth and eleventh multipliers connected respectively to the third and fourth inputs of the second adder, the output of which through a second integrator connected to the third output of the second transmitter, the first inputs, respectively, of the sixth, the seventh and twelfth multipliers, the output of the eighth multiplier connected to the first input of the ninth multiplier, the output of the tenth multiplier connected to the first input of the eleventh multiplier, the output of the seventh multiplier connected to the second output of the second transmitter and the second input of the ninth multiplier, the output of the twelfth multiplier connected to the first output of the second transmitter and the second input of the eleventh multiplier.

5. Tolevamer under item 2, wherein the third computer includes fourth and fifth is Aty multipliers, the first input of the third computer is connected to the first input of the sixteenth multiplier, a second input is connected with the first inputs, respectively, of the seventeenth multiplier and the third integrator, the third input is connected to the first input of the fifth adder, the fourth input is connected to the first input of the fourteenth multiplier, the fifth input is connected to the first input of the thirteenth multiplier, the sixth input is connected to the first and second inputs of the fifteenth multiplier, the output of which is connected to a second input of the sixteenth multiplier, the outputs of the thirteenth, sixteenth and seventeenth multipliers connected respectively with the second, third and fourth inputs of the fifth adder, the output of which is connected to a second input of the third integrator, the output of which is connected to a second input of the fourteenth multiplier, first and second inputs of the fourth adder, the output of which is connected to a second input of the thirteenth multiplier, the output of the fourteenth multiplier connected to the output of the third computer, the first and second inputs of the eighteenth multiplier, the output of which is connected to a second input of the seventeenth multiplier.

6. Tolevamer under item 2, wherein the fourth computer contains the sixth, seventh the residents, moreover, the first input of the fourth transmitter is connected to a second input of the twenty-first multiplier, a second input is connected to a second input of the nineteenth multiplier, the third input is connected to a second input of the twentieth multiplier, the fourth input is connected to a second input of the sixth adder, the fifth input is connected to a second input of the twenty-second multiplier, the sixth input is connected to a second input of the eighth adder, the seventh input is connected to the first input of the twenty-first multiplier and a second input of the seventh adder, with the first and third inputs of which are connected respectively to the outputs of the twentieth and twenty-second multipliers, the output of the seventh adder through the fourth integrator connected to the output of the fourth evaluator and the first input of the nineteenth multiplier, the output of which is connected to the first input of the sixth adder, the output of which is connected to the first input of the twentieth multiplier, the output of the twenty-first multiplier connected to the first input of the eighth adder, the output of which is connected to the first input of the twenty-second multiplier.

7. Tolevamer under item 2, wherein the fifth computer contains the ninth, tenth, eleventh adders, the fifth integrator, twenty-third, dedcated fifth computer is connected to a second input of the twenty-seventh multiplier, the second input is connected to a second input of the twenty-fifth multiplier, the third input is connected to a second input of the twenty-sixth multiplier, the fourth input is connected to a second input of the tenth adder, the fifth input is connected to a second input of the twenty-third multiplier, the sixth input is connected to a second input of the eleventh adder, the seventh input is connected to a second input of the twenty-ninth multiplier, the eighth input is connected to a second input of the twenty-fourth multiplier, the ninth input is connected to the first input of the twenty-fourth multiplier, the tenth input is connected to the first input of the twenty-fifth multiplier, the outputs of the twenty-third, twenty-fourth, twenty-sixth, twenty-ninth multipliers connected respectively to the first, second, third and fourth inputs of the ninth adder, the output of which through the fifth integrator connected to the output of the fifth transmitter and first inputs, respectively, of the twenty-third and twenty-seventh multipliers, the outputs of the twenty-fifth and twenty-seventh multipliers are connected with the first inputs, respectively, of the tenth and eleventh adders, the outputs of which are connected with the first inputs, respectively, of the twenty-sixth and twenty-ninth multipliers.

 

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The invention relates to instrumentation, specifically to devices for measuring liquid level, can be used for level measurement of liquids in tanks of General application and is especially effective in the tanks moving machines and mechanisms

FIELD: measurement technology; high-accuracy determination of liquefied gas mass in reservoir irrespective of its phase.

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FIELD: measuring engineering.

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