Hydraulic support linear displacement transducer detection device and detection method

Abstract

The invention relates to a hydraulic bracket linear displacement sensor detection device and a detection method. The linear displacement sensor detection device comprises an excitation mechanism and a displacement sensor detection body. The excitation mechanism comprises an extrusion magnetic horizontal excitation unit and a horizontal magnet-leakage resistance vertical extrusion magnetic unit. The displacement sensor detection body comprises a constant current source circuit, a reed tube detection circuit and a signal filter circuit. In the detection method of the sensor of the invention, the displacement value is converted into the change of the resistance value which is realized by a principle that the reed tube is conductive under a certain magnetic field strength; the constant current source drives the current to generate the voltage reduction at a load resistor; that the displacement value and the detected voltage form a linear relation so as to carry out the detection is realized by detecting the voltages at two ends of the load resistor. The linear displacement sensor of the invention has high detection sensitiveness and high measurement precision, and improves the anti-vibration performance of the linear displacement sensor of the invention by an active resistance low pass network.

Description

technical field [0001] The invention relates to detection technology, in particular to a hydraulic support linear displacement sensor detection device and a corresponding hydraulic support linear displacement sensor which are suitable for high-vibration environments in fully mechanized mining operations and have high detection accuracy, sensitivity and high vibration resistance Detection method. Background technique [0002] The hydraulic support electro-hydraulic control system was first developed in the 1970s, and entered the practical application stage in the 1980s. By the 1990s, the technology of the hydraulic support electro-hydraulic control system had matured, and its working performance and reliability could meet the technical requirements of use. With the advancement of technology, the hydraulic support sensor has also been continuously improved in its working performance and reliability. [0003] The development of displacement sensors has gone through the stage o...

AI Technical Summary

Problems solved by technology

[0012] In order to solve the technical problem of not being able to provide a linear displacement sensor technology suitable for hydraulic support systems in the prior art, the present invention provides a high-vibration sensor suitable for fully mechaniz...

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