Application of electric eddy-current sensor on fluid pressure measurement

An eddy current sensor and liquid pressure technology, which is applied in the measurement of fluid pressure, the measurement of fluid pressure through electromagnetic components, the measurement of fluid pressure of elastic deformation gauge, etc., can solve the problems of no application, etc., and achieve small size and strong anti-interference ability , Strong anti-overload ability

Inactive Publication Date: 2008-03-12
珠海市长陆工业自动控制系统股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, eddy current sensors are mainly used to measure displacement, vibration, etc., and have not been used in measuring liquid pressure and liquid level.

Method used

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  • Application of electric eddy-current sensor on fluid pressure measurement
  • Application of electric eddy-current sensor on fluid pressure measurement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] As shown in Fig. 1 and Fig. 2, the present embodiment is to measure liquid pressure and / or liquid level in the vertical tank container 2, and it comprises the following steps:

[0013] In the step of setting the elastic diaphragm, the elastic diaphragm 1 is arranged on the lower part of the outer wall of the container 2, the elastic diaphragm 1 communicates with the liquid to be measured, and the elastic diaphragm 1 communicates with the vertical tank through the connecting flange 6 Connection, of course, other connection methods can also be used, the elastic diaphragm 1 is made of stainless steel, and can measure certain corrosive liquids;

[0014] The metal connecting rod step is to set the metal connecting rod 4 horizontally, one end of the connecting rod 4 is fixedly connected with the elastic diaphragm 1, and the other end is close to the eddy current sensor 3 and between the probe coil of the eddy current sensor 3 There is a horizontal gap between them, so that th...

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PUM

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Abstract

The present invention discloses the application of electric eddy current sensor in measuring liquid pressure, and the application can meet the requirement in measuring pressure and liquid level of high viscosity and low flowability slurry fluid in high temperature, high pressure, high frequency response and other conditions, and has high overload resistance, high measurement precision, wide measurement range and high stability. The present invention has elastic diaphragm set in the lower part of outer side wall of liquid container and communicated with the measured liquid; horizontal metal link rod with one end fixed to the elastic diaphragm and the other end near the electric eddy current sensor with one horizontal interval in between; and processing circuit module connected to the output of the electric eddy current sensor. The present invention may be applied widely in various liquid pressure and level measuring fields.

Description

technical field [0001] The invention relates to the application of an eddy current sensor in measuring liquid pressure. Background technique [0002] At present, pressure sensors are commonly used in the methods of measuring liquid pressure and liquid level, especially for viscous, easy to block, easy to crystallize and corrosive media such as high viscosity and low fluidity slurry fluids. Generally, the belt method is used. Blue diaphragm pressure sensor or transmitter. The pressure sensor is an important part of the pressure detection system. Various pressure sensitive components convert the measured pressure signal into an easily measured electrical signal and output it to the display instrument to display the pressure value, or for control and alarm use. The pressure sensor currently used is a contact sensor, so the overload resistance is not strong, and it is easy to cause damage to the sensor; in addition, if the pressure sensor is a piezoelectric sensor, the piezoele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L9/00G01L7/08G01F23/16
Inventor 何晓东
Owner 珠海市长陆工业自动控制系统股份有限公司
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