Wide-range magnetostrictive displacement sensor measuring device and method

A displacement sensor, magnetostrictive technology, applied in the direction of measuring devices, electrical devices, instruments, etc., to achieve the effect of good anti-attenuation performance

Inactive Publication Date: 2013-08-07
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since no one in China has made a magnetostrictive displacement sensor with a large displacement of 5-10m, it is urgent to des

Method used

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  • Wide-range magnetostrictive displacement sensor measuring device and method
  • Wide-range magnetostrictive displacement sensor measuring device and method

Examples

Experimental program
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Embodiment 1

[0044]Embodiment 1: Under the power supply of the regulated power supply module, the oscillator in the excitation pulse generation module generates a 10MHz sine wave signal, and the frequency divider reduces the frequency and shapes to obtain a 5V square wave signal, and then the monostable multiharmonic The oscillator generates an excitation pulse signal with an amplitude of 8V and a pulse width of 30us; the excitation pulse signal is converted into a pulse current signal after passing through the pulse current transmitting module and transmitted to the sensor measurement device through the interface circuit; the position magnet generates a longitudinal magnetic field, and The intersection of the magnetic fields generated by the current pulses causes the magnetostrictive material to generate torsional elastic waves. One end is absorbed by the attenuation and damping device, and the other end is sensed by the pickup and transmitted to the echo signal receiving amplifier module f...

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Abstract

The invention discloses a wide-range magnetostrictive displacement sensor measuring device and method. The wide-range magnetostrictive displacement sensor measuring device mainly comprises a magnetostrictive displacement sensor signal emitting and receiving circuit and a magnetostrictive displacement sensor measuring device; the magnetostrictive displacement sensor signal emitting and receiving circuit is connected with the magnetostrictive displacement sensor measuring device; and the magnetostrictive displacement sensor signal emitting and receiving circuit is used for emitting current pulse signals and receiving magnetostrictive echo signals, and the magnetostrictive displacement sensor measuring device is used for measuring the transmission time of the magnetostrictive echo signals. The wide-range magnetostrictive displacement sensor measuring device can finish the displacement measurement in dangerous environments.

Description

technical field [0001] The invention relates to a magnetostrictive displacement sensor. Background technique [0002] With the development of sensor detection technology and the continuous emergence of new sensor technologies, sensors based on magnetostrictive displacement measurement sensor technology have emerged as the times require. This type of sensor technology is relatively new and has great prospects in displacement measurement. It is suitable for high-strength, high-dangerous and extremely harsh working environments, and is widely used in liquid level measurement of oil depots, liquid level measurement of toxic chemicals, etc. The range of the finished magnetostrictive displacement sensor in China is within 3m. Compared with traditional sensors, it has a long service life, high measurement accuracy, high measurement accuracy, good safety and strong reliability. Since no one in China has made a magnetostrictive displacement sensor with a large displacement of 5-10m...

Claims

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Application Information

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IPC IPC(8): G01B7/02
Inventor 周新志冯希辰贾琦
Owner SICHUAN UNIV
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