Substance layer height determining device. RU patent 2478191.
 Spectrometric apparatus for analysing fluid medium / 2473058Apparatus comprises: an illumination device which can generate a light beam in one wavelength range, a probe (PRB) which is such that the light beam from the illumination device interacts with the analysed fluid medium (20), and a spectrum analysis device which can receive the light beam after interaction thereof with the analysed fluid medium and output luminous intensity measurements for different wavelength ranges. The probe (PRB) has a retroreflector-type reflector (13) which reflects in the direction of the light source, which is placed such that it receives the light beam passing from the illumination device through the analysed fluid medium, and reflect it essentially in the opposite direction, while easily expanding it, to a receiving light-guide (12) which is connected to the reflector and the spectrum analysis device so as to receive the light beam passing through the analysed fluid medium and transmit it to the spectrum analysis device. |
 Method of simulating melt hydrodynamics in casting mould / 2472602Invention relates to metallurgy. Simulation is performed by feeding water into teeming vessel 1 stopped by stopper 2 via tube 8 at open valve 9 and switched-on heater 21. Required fluid level and preset temperature reached, controlled by gage 20 and thermocouple 22, respectively, water is fed from teeming vessel 1 via device 4 with holes 5 in mould model. Required water level reached, water flow rate electrical controller 14 opens. Thereafter, water flows vi a cellular cells 11 in baffle 10 into manifold 12 with branch pipe 13. Heated water in mould model heats layer 19 of 0.03 mm-thick liquid crystals on glass walls 6, 7 to produce colour image registered by video camera 17 and transmit it to display of computer 18. |
 Method of simulating melt hydrodynamics in casting mould / 2472601Invention relates to metallurgy. Simulation is performed by feeding water into mould model with glass walls at ambient temperature and mould walls temperature of 10-15°C. Inner surface of mould model walls is blackened to apply LC-layer of cholesteryl erukate. Water fed into model is heated to 40-43°C and held therein to 20-25°C to produce colour image by light diffraction at periodic structure of cholesteryl erukate. Then, image is registered by video camera and transmitted to computer display. Water flow rate in model is set equal to ωm=0.4-0.6 m/s. Length 1 of model wide wall is defined using criterion of similarity of Reynolds number Re=ωm·1/ν=(0.16-0.36)106, where ν is water kinematic viscosity. |
 Method and apparatus for calibrating turbidity sensors / 2469297Method of calibrating turbidity sensors involves picking up the signal of the sensor depending on turbidity of the liquid passing through it. The sensor is placed in a closed loop with a uniform cross-section in which there is directed movement of liquid with constant speed which enables to form a uniform suspension of particles. The required concentration of particles and their fractional composition are provided by adding a weighted portion of particles of a given fraction to the liquid. The apparatus for calibrating turbidity sensors has a vessel with a liquid in which there is a mechanical drive with a control which provides it with movement and a turbidity sensor with a measuring system. The vessel is in form of a closed loop with a uniform cross-section in which there is a pump. A loading unit is mounted in the top part of the loop and the calibrated sensor is placed in the descending branch of the loop. |
 Method for colour classification of objects and electrooptical device for realising said method / 2468345Controlled objects are placed in an analysis zone which is optically interfaced with a radiation source and a photodetector module. A colour image of each of the control objects is formed and the combined colour image is converted to an electric signal. The obtained signal is converted from analogue to digital to obtain three two-dimensional arrays of integers, each bearing information on spatial distribution of one of three colours - red, blue and green - in the image. The obtained two-dimensional arrays of integers are converted to a colour space and the colour coordinate value of each element of the corresponding array is compared with known values of corresponding colour coordinates of the image of the analysis zone. For elements which do not match on the colour coordinate, the colour coordinates are adjusted using the expression: . Objects are classified by comparing values of colour coordinates adjusted on colour of array elements based on at least one colour coordinate with a priori known values of the corresponding colour coordinate of reference objects. |
 Device for determining colloids and sols, weight component thereof in total flow of exhaust gases within dynamic range of internal combustion engine / 2450259In the device, according to the invention, standard and spent gas containers have identical non-transparent channels darkened from the inside and sealed from the ambient environment; front covers of the channels at centre are provided with threaded bushings for screwing in eyepieces, inserting ends of light guides and cantilevers and their mounting; there are photodetectors on the inner surface of the front covers. Beyond the boundary of the focus of the lenses of the eyepieces across the channels, there are transparent partition walls for sealing photo-optical modules from gaseous media coming from below the channels through nozzles, as well as corrugated hoses, pneumatic cranes, a block of air filters and an exhaust gas probe-receiver having an elastic retainer in the opening of the exhaust pipe of the car. There are also sealed covers behind the channels, having nozzles underneath, corrugated hoses, a discharge manifold, controlled multi-position fluidic resistors, pneumatic ducts, control levers and pull rods for controlling the fluidic resistors, devices for measuring dynamic pressure in the channels and gas flow rate. All modules and components of the invention are mounted on a horizontal board and a front vertical panel with a telescopic support on wheels. |
 Model plant of continuous steel casting / 2433015Invention relates to hydrodynamics of liquids flow in a crystalliser. The plant comprises a transparent crystalliser 7 with wide and narrow faces, a water flow reflector 10 in the form of comb cells 11, a casting reservoir 1 with a stop 2 and a casting sleeve 3 submerged in it 3 with output holes 4 for water supply into a crystalliser 7, a nozzle 12 with a header 13 for water discharge, two video cameras 15, 16 connected to a computer. The crystalliser 7 is made at the scale of (1/4÷1/3) relative to dimensions of the industrial crystalliser. The faces of the crystalliser 7 are made as narrowing to the bottom part at the angle α= 1÷1.5° to the vertical line. Video cameras 15, 16 are arranged with the possibility to fix flows of fluids that wash wide and narrow faces of the crystalliser 7. In the walls of the casting sleeve 3 there is a groove with a porous insert with permeable partitions filled with a dyeing fluid. |
 Method of determining transparency of flat light-transmitting print materials / 2427823In the method, the analysed material placed on a black substrate is illuminated normal to the surface. A flat metallic mirror is placed under the analysed material as another substrate. After detecting relative reflected light flux, the coefficient of reflection of light by material placed on the black substrate Ro and the coefficient of reflection of light by material placed on the flat metallic mirror Rm is determined. Transparency dc of the analysed material is determined by the value |
 Turbidimetre / 2408873Turbidimetre has a cup with a perforated lateral surface, a hollow cylinder, a radiation source, a cover with holes and a radiation receiver. On the lateral wall of the cup opposite each perforation there is light-absorbing cap having a perforated lateral wall, and inside the cup there is a ⊥-shaped hollow rotor placed coaxially with possibility of rotation, in which are mounted a direct illumination light-emitting diode and a diode, light from whose output of which is partially scattered and partially absorbed in the light-absorbing cap, each of which has entrance and exit windows. The entrance windows of the light-emitting diodes lie opposite the radiation source, the exit window of the light-emitting diode, light from whose output of which is partially scattered and partially absorbed in the light-absorbing cap, lies opposite the perforation in the cup closed by the perforated cap, and the exit window of the direct illumination light-emitting diode lies opposite the radiation receiver. The light-emitting diodes can be made from metal or polymer material and have total reflection mirrors. The material of the light-emitting diodes can be optical fibre. |
 Method and system for monitoring in online mode / 2372981Invention relates to a method of measuring a set of technological parametres of a chemical process taking place in a chemical reactor. The method of determining at least one technological parametre of a chemical process taking place in a reactor 2, involves passing a sample of the process medium of the chemical process into a lateral circuit (20, 22, 24, 26, 34, 40, 42, 36) and isolation of the said sample from the remaining process medium in the said reactor; circulation of the said sample in the said lateral circuit and its thermal processing therein to the required temperature; taking measurements of at least one technological parametre of the said sample, chosen from viscosity, pH, conductivity, turbidity, and/or taking spectrometre measurements with provision for spectrometric data at the required temperature; controlling the chemical process based on the determined at least one technological parametre. The method is realised in a system which has an output 18 and an input 28; lateral circuit (20, 22, 24, 26, 34, 40, 42, 36), connected to the reactor 2 through output 18 and input 28, which enable passage of the sample of process medium from the said reactor 2 to the said lateral circuit and back to the said reactor; a device 30 for circulating the said sample; valves V1, V2, V4, V5 for isolating the said sample in the said lateral circuit from the remaining process medium in the said reactor 2; a device for thermal processing 46, 50, 52, V7 the said sample in the said lateral circuit to the required temperature; and a device for measuring 38 at least one technological parametre, chosen from viscosity, pH, conductivity, turbidity; and/or apparatus for measuring spectrometric data at the required temperature in the said lateral circuit and apparatus for controlling the chemical process based on the measured technological parametres. |
 Method of determining level of liquid in container / 2473056Section of a long line is placed vertically in a container with a liquid, said line being filled with the liquid in accordance with its level in the container and having a horizontal end section which is filled, in steps, with the liquid and emptied when the liquid enters the container and is removed from the container, respectively; electromagnetic oscillations are excited in the section of the long line. The electromagnetic oscillations in said section are excited at two different resonance frequencies f1 and f2 which correspond to different energy distribution of the electromagnetic field along said section of long line with the horizontal end section; these resonance frequencies are measured depending on the level z of the liquid in the container and combined functional processing thereof is carried out in accordance with the relationship |
 Method of measuring level of liquid in container / 2473055Waveguide is placed vertically in a container. Electromagnetic waves at a fixed frequency are excited in the waveguide at one of its ends. The frequency of the excited electromagnetic waves is selected lower than the critical frequency. Waves are received after propagating along the waveguide at the same end or the other end and the amplitude of the received waves is measured, from which the level of the liquid is determined. When measuring the level of liquid in a metal container, the waveguide used can be the container itself. |
 Method of measuring level of substance in open metal container / 2473054In the method of measuring the level of a substance in an open metal container, conditions for below cutoff propagation of electromagnetic waves are first created in the top unfilled part of the container. Electromagnetic oscillations are excited in the container as in a cavity resonator and their resonance frequency is determined, from which the level of substance is determined. |
 Radar level gauge / 2471159Apparatus has a level sensor with a microstrip antenna, an interface converter, a control device and a power supply. The microstrip antenna is able to measure the angle of inclination of the emitting surface. The angle of inclination of the emitting surface is changed through an adjustable support with actuating mechanisms which are connected to the control device. |
 Radar level gauge / 2460048Radar level gauge has a level sensor 1 with a microstrip antenna 2, an interface converter 3, a control device 4 and a power supply 5. On top of the radiating surface of the microstrip antenna 2, there is a dielectric plate which covers the radiating surface of the microstrip antenna 2. Additional items of the claim indicate specific implementation and arrangement of parts of the level gauge. |
 Method and device for accurate fluid level determination by radar signals emitted toward fluid surface and those reflected therefrom / 2431809Proposed device comprises at least one radar antenna arranged above fluid to radiate radar signals toward fluid surface and to receive radar signals reflected from said surface, and appliance to determine fluid level proceeding from radiated and reflected radar signals. |
 Method to measure level of material in reservoir / 2410650Invention relates to the field of measurement equipment and may be used to measure level of liquid or loose materials, and also to measure distance. The invention concept is as follows: method to measure level of material in reservoir consists in the fact that inside zone with higher error of measurement caused by availability of interference reflector, formation of likelihood function logarithm (LFL) values is carried out, having multiextremal nature, and local extremum of LFL is found, corresponding to actual value of level, by variation of delay time of reference signal within the limits that correspond to two limits of measured level, which differ from value of level predicted by previous measured values, by not more than half of wave length of carrying oscillation towards both sides. In case of such formation of borders, one and the same extremum of LFL is continuously monitored, corresponding to actual status of medium level. Phase of reference signal for calculation of LFL is determined using previously measured phase-frequency characteristic of metering device, or is accepted as equal to phase of maximum spectral component of differential frequency signal calculated at the border of zone with higher error of measurement. Using produced value of delay time of reflected signal corresponding to maximum of LFL, distance to material surface is calculated. To determine borders of zones with higher error of measurement, preliminary practice is arranged, when position of all interference reflectors is determined on empty reservoir, and two borders of zones with higher error are specified in neighbourhood of each one, differing from distance to according interference reflector by tripled value of element of frequency modulated signal resolution with specified deviation of frequency. |
 Water-oil interface control unit / 2365880Invention refers to measurement equipment and can be used to control position of oil-water contact (22) (OWC) between continuous oil solution (2o) over continuous aqueous solution (2w) inside of casing pipe (7). Said unit contains transmitter (5) used to generate electromagnetic signal (St) and power-supplied from voltage signal generator (G). Transmitter (5) is immersed in continuous oil solution (2o), over oil-water contact (22), being in-built in casing pipe (7). The electromagnetic wave signal (ST) is propagates partially downwards from transmitter (5) and reflected partially from the oil-water contact (22) and from casing pipe (7) end, thereby intensifying the upward propagation of the reflected electromagnetic signal (SR). The reflected electromagnetic signal (SR) detector (6), also arranged over oil-water contact (22), generates detector signal (RR) for a detector signal (RR) receiver (60) and further to a detector signal (RR) analyser (61) evaluating the detector signal (RR), e.g. with respect to reciprocal propagation time or amplitude to calculate build-up for oil-water contact (22). The specified unit implement the relevant measurement method. |
 Method of radio wave level measurement / 2334953Invention is related to instrumentation for measurement of different substances level. In method of radio wave level measurement, based on linear frequency modulation, which includes generation of microwave signal of alternating frequency, radiated in direction of measured level surface, execution of fast Fourier transform of difference frequency signal of radiated and surface-reflected measured level of signals, detection of distance to the measured level, compared to the known one, signal of fast Fourier transform filter is singled out with maximum amplitude and filter signals lateral from it, by values of measured signals signal of interpolated cubic spline is built with pitch that is less than width of filter of fast Fourier transform of initial signal. Then signal point is detected with frequency that corresponds to maximum frequency of spline filter, based on which distance to measured level is calculated. |
 Device and process of level measurement by radiolocation / 2327958Device for level measurement of fluid situated under a dielectric constant gas with the constant value within given range. The device includes: microwave transmitter emitting given mode into tube through gas in the direction of fluid surface; microwave receiver for the signal reflected off the fluid surface and propagating back through the tube; and signal processing device for calculating fluid level on the base of transmitted and reflected signal propagation speed data. Actually, in order to eliminate impact of dielectric constant of the gas above the fluid on the calculated level value, the transmitter is enabled to transmit microwave signal in a definite frequency range, where group propagation velocity of a microwave signal in the form of given mode is basically independent of dielectric constant within definite value range. |
 Method of determining thickness of uniform nanolayer in infrared radiation / 2470257Method involves depositing a layer onto a substrate, which is capable of directing a surface electromagnetic wave (SEW), exposing the substrate to probe radiation, converting the radiation to SEW, detecting changes in the SEW as a result of it travelling a macroscopic distance Δx, calculating the thickness of the layer from the measurement results and values of optical constants of the substance of the layer and material of the substrate. The SEW is converted to a volume wave. The beam of probe radiation and the volume wave are superimposed. Resultant intensity of interfering waves before and after the SEW travels a distance Δx is recorded and thickness of the nanolayer is calculated based on phase increment of the SEW by the distance Δx. |
FIELD: measurement equipment.
SUBSTANCE: device for determining the layer height of the substance flowing via an aeroflow conveyor includes an emission source connected at its outlet to emission input element, emission output element connected to the input of polarisation plane turning angle metre, and winding. The device includes a converter, an amplifier, an actuator and a power supply unit. Output of polarisation plane turning angle metre is connected to the converter input, the output of which is connected to the amplifier input. The amplifier output is connected to the first arm of the actuator; the second arm of the actuator is connected to the first arm of the power supply unit, the second arm of which is connected to the beginning of winding; end of winding is connected to the third arm of the actuator.
EFFECT: reduction of power consumption.
1 dwg
The invention relates to the measuring engineering and may be used in control systems of technological processes.
A device for determining the height of the layer of the material in (see .. «Innovative microwave devices flow measurement of solids in », automation in industry, №11, 2008, p.29-30), in which radiated metal plate electromagnetic waves interact with controlled material and the magnitude of the signal reflected from the surface layer of the material is judged on the height of a layer.
The disadvantages of this known device is the complexity of the procedure of obtaining information about the height of a layer of the necessary choice of the linear sizes of the plate and its shifts depending on the geometrical sizes .
The closest to the proposed technical solution is accepted by the author for the prototype device, which implements a way to determine the height of the layer of loose material, transported on the (see EN №2395789 C1, 27.07.2010).
The principle of this device containing the radiation source, the elements of the input and output radiation meter angle of rotation of the plane polarization and a winding located in the grooves of the outer surface of , is that create an alternating magnetic field with the help of winding on a horizontal measuring site , to probe material electromagnetic wave through the input element, accept passed through a layer of a material of a wave through the element of the output radiation and measure the angle of rotation of the plane of polarization of the previous wave, associated with the height of the layer of the material in .
The downside of this development can be considered a high power consumption when the flow along optically active substances.
The technical result of the proposed solutions is to reduce power consumption.
The technical result is achieved by the device to determine the height of the layer of the substance transported on containing radiation source connected to the output element of the input radiation element of radiation output is connected to the input of the angle of rotation of the plane of polarization, and a winding introduced Converter, amplifier, Executive mechanism and a block power, and the exit angle of rotation of the plane of polarization is connected to the input of the Converter, the output of which is connected to the input of the amplifier, the output of the amplifier is connected to the first shoulder of the actuator, the second arm of the actuator is connected to the first shoulder of the power supply, the other arm which are connected with the beginning of the winding, the end of the winding is connected to the third shoulder of the Executive mechanism.
The essence of the claimed invention characterized above signs, is that the information signal about the height of a layer of material in , after his conversion and amplification is used to control the Executive mechanism for carrying out power off the winding of the course of the optically active substances.
The existence of the claimed device of the combination of these existing characteristics allows to solve the problem of determining the height of the layer of substances on the basis of use of the information signal about the height of a layer with its further impact on the actuator with the desired effect, i.e. the reduction of power consumption.
The drawing shows a block diagram of the device.
Device implementing this solution, contains the source of the radiation 1, connected to the output element of the input radiation 2, item radiation output 3, connected with the entrance angle of rotation of the plane of polarization of 4 connected output through a Converter 5 to the input of the amplifier 6, the Executive mechanism 7, connected to the second shoulder to the first shoulder power supply 8 and winding 9. On the drawing the number 10 is marked .
The device works as follows. At passage of an optically inactive substance , its measuring area, as shown in the prototype, create an alternating magnetic field with the help of the winding. After that probe material electromagnetic wave and in view of the fact that controlled material under the influence of an alternating magnetic field becomes optically active, and the measurement of the angle of rotation of the polarization plane passed through a layer of material waves, determine the height of the layer of the material in .
If to assume that the instead of optically inactive substance flows active, in this case due to the influence of an alternating magnetic field on this substance, the angle of rotation of the plane of polarization of the previous waves through the layer of optically active substances will be formed from the natural ability of a controlled substance, and Faraday effect (magnetic field).
As required in this case the impact of an alternating magnetic field, there is a need to disconnect the power winding, which, in turn, will lead to reduction of power consumption (power saving) when determining the height of the layer of optically active substances.
To do this, first by winding 9, power supply 8, alternating magnetic field on a horizontal measuring site 10, through which flows an optically active substance. Then electromagnetic wave emitted element of the input radiation 2, after the receipt on his entrance of the electromagnetic signal from the source of radiation 1, is exposed to a controlled environment in . After that, passed through a layer of a controlled substance wave accepted element of the output radiation 3. With the release of the latest signal arrives at the input angle of rotation of the plane of polarization of 4.
According to the proposed device with variable magnetic field and course of the optically active substances, the output signal of the angle of rotation of the plane of polarization associated with a height of layer of optically active substances in , to the input of the Converter 5, where it is converted and sent in amplifier 6. With the release of the latest amplified signal (voltage) arrives on the first arm of the actuator 7. Here as a last used, for example, relay, which, with its normally closed contact provides power to the winding of the power supply. Next, U moustache >U ceff , where U us - voltage at the output of the amplifier U ceff - voltage relay, normally closed contact relay opens (relays) and power winding turns off. Therefore, it is time for the absence of an alternating magnetic field. As a result of the meter angle of rotation of the polarization plane passed through a layer of optically active substances waves, element of the output radiation, one can determine the height of the layer of the substance flowing through . Thus the value of the voltage at the output of the amplifier should not be less than the value of the voltage hold relay, i.e. the relay must be in a state of alarm.
Thus, the proposed technical solution, based on the transformation and strengthening of the information signal about the height of a layer of optically active substances in with the further its influence on the Executive mechanism for controlling the operation of a coil, which creates an alternating magnetic field, you can reduce power consumption.
A device for determining the height of the layer of substance flowing through containing radiation source connected to the output element of the input radiation element of radiation output is connected to the input of the angle of rotation of the plane of polarization, and a winding characterized in that it introduced Converter, amplifier, actuator and the power supply unit with output angle of rotation of the plane of polarization is connected to the input of the Converter, the output of which is connected to the input of the amplifier, the output of the amplifier is connected to the first shoulder of the actuator, the second arm of the actuator is connected to the first shoulder of the power supply, the other arm which are connected with the beginning of the winding, the end of the winding is connected to the third shoulder of the Executive mechanism.