Bidirectional pressure sensor based on magneto-rheological elastomer
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A magnetorheological elastomer, two-way pressure technology, used in the measurement of fluid pressure, elastic deformation gauge type fluid pressure measurement, and fluid pressure measurement through mechanical components, etc., can solve the problem of inaccurate pressure parameter detection and achieve the Accuracy, effect of changing range and precision
Pending Publication Date: 2020-09-22
ZHEJIANG NORMAL UNIVERSITY
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[0003] The purpose of the present invention is to provide a bidirectional pressure sensor based on magnetorheological elastomers, which can effectively solve the problem of inaccurate detection of pressure parameters in industrial production
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[0019] The present invention will be further described in detail below with reference to the drawings and embodiments.
[0020] The working principle of a specific implementation of a bidirectional pressure sensor based on a magnetorheological elastomer of the present invention is: when an external fluid enters the pressure inlet, the fluid pressure pushes the first push plate 51 and the second push plate 52 to move toward the inside of the device and Squeeze the elastic body. At this time, the elastic body inside the device will produce a certain amount of deformation and the resistance value of the elastic body will change. The microcontroller 32 measures the No. 1 plate 71 and No. 2 plate 72 through the No. 1 signal line 21. The resistance value between the second plate 72 and the third plate 73 is used to calibrate the external fluid pressure for the first time. The microcontroller 32 measures the fourth plate 74 and the fifth plate 75 and the fifth plate through the second si...
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Abstract
The invention provides a bidirectional pressure sensor based on a magneto-rheological elastomer. The sensor comprises an upper shell, a lower shell, a first signal line, a second signal line, a firstpower-on wire, a second power-on wire, a microcontroller shell, a microcontroller, a bolt, a nut, a first push plate, a second push plate, a first O-shaped ring, a second O-shaped ring, a first polarplate, a second polar plate, a third polar plate, a fourth polar plate, a fifth polar plate, a sixth polar plate, a first elastomer, a second elastomer, a third elastomer, a fourth elastomer, an exciting winding and a skeleton. According to the sensor, the magnetic field intensity can be adjusted by controlling current through the microcontroller, so that the rigidity of the magneto-rheological elastomers is changed, and the purposes of obtaining a proper pressure measurement range, precision and accuracy are achieved.
Description
Technical field [0001] The invention relates to the field of pressure sensors, in particular to a bidirectional pressure sensor based on magnetorheological elastomers. Background technique [0002] In the field of industrial production, it is necessary to perform pressure detection on certain process links. If the pressure detection in the production process is inaccurate, it may cause errors in the production process and cause loss of life and property. In order to solve the problem of low detection accuracy of a single pressure sensor in the industrial production field, the present invention designs a two-way pressure sensor based on magnetorheological elastomers, which can adjust the magnetic field intensity by controlling the current through a microcontroller, thereby changing the magnetic field. The rigidity of the rheological elastic body can achieve the purpose of obtaining a suitable pressure measurement range, precision and accuracy. Summary of the invention [0003] The...
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