Level meter sensor

FIELD: instrument engineering.

SUBSTANCE: level meter sensor comprises hollow rigid base with the port in its bottom end, diaphragm, strain gage converter with box, flexible spacer arranged over periphery of the box, and tube whose one end is mounted pressure-tightly in the port of the support and the other end is connected to the space of the box. The diaphragm is made of a rigid material and mounted on the flexible spacer for permitting cooperation with the strain gage converter.

EFFECT: enhanced reliability and simplified structure.

1 dwg

 

The invention relates to the making, in particular to the means of control and measuring the level of liquid and granular media in a confined space.

Known sensor digital sensor containing the protective cover, switch, membrane (Application for invention No. 93025956, CL G 01 F 23/74).

Known sensor has a low reliability and a complex structure. This is because it has an elastic sleeve, which is relatively often fails. When the discreteness of 10 cm and measure the level of, for example, 3 m is required 30 switches, the same number of LEDs and wires. Reducing the discreteness leads to additional complexity. With a significant increase in the incremental loss of data.

The closest in technical essence is a discrete sensor sensor containing a hollow rigid support with a longitudinal through groove, the plate with the Windows, each of which has a switch (for example, a microswitch, reed switch and the like), a membrane made of an elastic material which hermetically closes each of the Windows, and paired with the spring loaded core switch (RF Patent for the invention №2204808, CL G 01 F 23/24).

The disadvantage of this sensor is the low reliability and design complexity. This is because the elastic membrane will compare the flax often fails. Complicated structure due to the presence of a large number of switches, LEDs and wires.

The present invention is to increase reliability and simplify the design of the sensor.

This task is achieved in that the sensor transmitter containing a hollow rigid support with a window at its lower end, the membrane with lansoprazole with box, elastic strip located along the perimeter of the carton, a tube, one end of which is hermetically installed in the window pillars, and the other tightly connected with the cavity of the box, and the membrane is made of rigid material and mounted on an elastic strip with the ability to interact with lansoprazole.

The drawing shows the sensor transmitter.

Sensor sensor includes a hollow rigid support 1 box 2, lansoprazole 3 box 4, the elastic strip 5, located on the perimeter of the box 4, the membrane 6 made of rigid material located on the strip 5 and coupled with lansoprazole 3, the tube 7, one end of which is hermetically installed in window 2, and the other tightly connected with the cavity of the box 4.

The sensor operates as follows. In the initial position of the liquid level (or granular material in the tank is below the limit or not. In this case, the electrical signal output is e lansoprazole missing. When the flow of liquid or granular material in the reservoir to the membrane 6 is transmitted to the pressure-controlled environment R:

P=ρgh,

where ρ - densities;

g - free fall acceleration;

h - the height level of the medium.

Under the action of the pressure membrane 6 is moved down and affects associated with it lansoprazole 3 and at its output an electric signal the amplitude of which is directly proportional to the measured level h.

Information about the measured level of liquid or granular material can be transferred in the form of an electric signal (measuring device) microcontroller, and a digital display displays the measured level.

The sensor is reliable because of the simplicity and manufacturability of the design.

Sensor sensor containing a hollow rigid support with a window on the lower end of the membrane, characterized in that it is equipped with lansoprazole with box, elastic strip located along the perimeter of the carton, a tube, one end of which is hermetically installed in the window pillars, and the other tightly connected with the cavity of the box, and the membrane is made of rigid material and mounted on an elastic strip with the ability to interact with lansoprazole.



 

Same patents:

Discrete sensor // 2204809
The invention relates to the instrument and can be used for liquid level measurement in closed volumes

Discrete sensor // 2193165
The invention relates to the field of instrumentation and can be used for liquid level measurement in closed volumes

The invention relates to the instrument and can be used for level control in tanks and various process vessels, for example, evaporators sugar production

The invention relates to devices for controlling the level of liquid in the process vessel

FIELD: the invention refers to measuring technique and may be used for controlling bulk and liquid materials.

SUBSTANCE: the oscillating indicator of a level has a sensible element( a probe) 1 connected with an anchor 2, a driving arrangement 4 in the shape of a coil with a ferromagnetic core and also a sensor 5 of the displacements of the anchor, a drive-pulse generator 6 and an amplifier 7 and a relay block 9 successively connected. The amplifier is spanned with a regulated negative feedback fulfilled in the shape of a resistor 8. The sensor 5 of the displacements of the anchor may be fulfilled in the shape of a coil with a ferromagnetic core. At that the section of the anchor 2 between the coils is fulfilled out of non-magnetic material that prevents electromagnetic connection between the coils providing protection from high frequency oscillations in the system anchor-coil-amplifier.

EFFECT: allows to control the levels of the bulk and liquid materials being present in aggressive mediums, under pressure,( discharge)and at temperature till 200 degrees.

2 dwg

FIELD: measuring engineering.

SUBSTANCE: method comprises pressing unit reinforced by electrodes with simultaneous forming of insulator between the electrodes. The space that is defined by surfaces of the electrodes is filled with casting plastic mass. The pressure tightness is provided by tightening the insulator with electrodes by means of a nut.

EFFECT: enhanced reliability.

1 dwg

FIELD: measuring engineering.

SUBSTANCE: device comprises fuel level indicator and rheostat pickup made of an analogue-digital converter with the balance input. The three-position switch is connected with the lever indicator. The device additionally has three resistive dividers, voltage stabilizer, and shunting resistor made of a 0.003-0.006-Om resistor. The rheostat level pickup is mounted inside the fuel tank vertically, and its linear horizontal size at this level is directly proportional to the area of the tank section in the horizontal plane at this level.

EFFECT: expanded functional capabilities.

1 dwg

The invention relates to the measuring of the level of the melt and can be used in the metallurgical industry, in particular in installations engaged in the welding of the metal surface layer on a cylindrical part

The invention relates to the field of measurement technology, in particular to the manufacture of devices level control of conductive liquid and bulk materials

The invention relates to the making, in particular to the means of control and measuring the level of liquid and granular media in confined spaces

Transmitter // 2204807
The invention relates to a device for measuring liquid level in open reservoirs, canals, sewage reservoirs and other hydraulic structures

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The invention relates to a device for monitoring the liquid level and can be used on transport vehicles

FIELD: measuring engineering.

SUBSTANCE: device comprises fuel level indicator and rheostat pickup made of an analogue-digital converter with the balance input. The three-position switch is connected with the lever indicator. The device additionally has three resistive dividers, voltage stabilizer, and shunting resistor made of a 0.003-0.006-Om resistor. The rheostat level pickup is mounted inside the fuel tank vertically, and its linear horizontal size at this level is directly proportional to the area of the tank section in the horizontal plane at this level.

EFFECT: expanded functional capabilities.

1 dwg

FIELD: measuring engineering.

SUBSTANCE: method comprises pressing unit reinforced by electrodes with simultaneous forming of insulator between the electrodes. The space that is defined by surfaces of the electrodes is filled with casting plastic mass. The pressure tightness is provided by tightening the insulator with electrodes by means of a nut.

EFFECT: enhanced reliability.

1 dwg

FIELD: the invention refers to measuring technique and may be used for controlling bulk and liquid materials.

SUBSTANCE: the oscillating indicator of a level has a sensible element( a probe) 1 connected with an anchor 2, a driving arrangement 4 in the shape of a coil with a ferromagnetic core and also a sensor 5 of the displacements of the anchor, a drive-pulse generator 6 and an amplifier 7 and a relay block 9 successively connected. The amplifier is spanned with a regulated negative feedback fulfilled in the shape of a resistor 8. The sensor 5 of the displacements of the anchor may be fulfilled in the shape of a coil with a ferromagnetic core. At that the section of the anchor 2 between the coils is fulfilled out of non-magnetic material that prevents electromagnetic connection between the coils providing protection from high frequency oscillations in the system anchor-coil-amplifier.

EFFECT: allows to control the levels of the bulk and liquid materials being present in aggressive mediums, under pressure,( discharge)and at temperature till 200 degrees.

2 dwg

Level meter sensor // 2276333

FIELD: instrument engineering.

SUBSTANCE: level meter sensor comprises hollow rigid base with the port in its bottom end, diaphragm, strain gage converter with box, flexible spacer arranged over periphery of the box, and tube whose one end is mounted pressure-tightly in the port of the support and the other end is connected to the space of the box. The diaphragm is made of a rigid material and mounted on the flexible spacer for permitting cooperation with the strain gage converter.

EFFECT: enhanced reliability and simplified structure.

1 dwg

FIELD: the invention refers to the field of instrument making and designed for control of the level of dielectric and current conducting liquids in hydraulic systems (fuel, freezing, accumulative etc) for example the level of oil or cooling agent in transport vehicles.

SUBSTANCE: the liquid level meter has a two-electrode capacitance sensor with an external 10 and interior 11 electrodes electrically connected with an electronic scheme having a stabilized source of power supply, an amplifier, a generator and a trigger. According to the first variant the capacitance sensor is fulfilled in the shape of a coaxial condenser "C". The interior electrode 11 of the sensor is fulfilled tubular and is mounted inside a fluoroplastic probing rod 12. The interior electrode 11 is connected to the input of a phase comparator which is additionally introduced in the scheme and whose output is connected with input of the trigger and the output of the last is provided with a line of delay and has two outputs - direct and inverse connected with a transistor key fulfilled with possibility of fulfillment of an operation "switched on" or "switched off". At that the electronic scheme is fulfilled on a digital integrated microchip. According to the second variant the interior electrode 11 of the coaxial condenser "C" is fulfilled tubular and is additionally provided with a protective shield 22. The shield 22 is fulfilled in the shape of a spiral spring out of bronze and electrically connected with the external electrode - the body 10 of the coaxial condenser "C".

EFFECT: increases sensitiveness and accuracy of measuring of the level of liquid.

6 cl, 4 dwg

FIELD: invention refers to control-measuring technique and is assigned for control and signaling about border of interface between mediums petroleum product-water in installations for purification water from petroleum products or watered petroleum products from water.

SUBSTANCE: sensor has flange, three electrodes with sleeves on their low ends filled with fresh water, moreover two of them are covered with dielectric insulation. Electrodes with sleeves are located inside tube of protective screen and are fastened in flange with aid of stuffing boxes-insulators. Screen in upper part has diaphragm ring with openings along circumference coinciding with openings in screen forming swinging compensator and is fastened to flange with aid of screws. Electrodes of sensor together with sleeves and electronic part form oscillating contour going in resonance at presence in space between electrodes of electric conductive medium (water) with following triggering of executive elements and at presence of water between electrodes of petroleum product resonance of contour stops.

EFFECT: increases reliability of work of sensor.

2 cl, 1 dwg

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