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Pressure measuring system based on laser interference

A laser interference and laser technology, applied in the field of pressure measurement system based on laser interference, can solve the problem of low detection accuracy of pressure sensors

Pending Publication Date: 2020-10-23
CHINA ACADEMY OF ELECTRONICS & INFORMATION TECH OF CETC
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Problems solved by technology

[0003] The invention provides a pressure measurement system based on laser interference to solve the problem of low detection accuracy of pressure sensors in the prior art

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  • Pressure measuring system based on laser interference
  • Pressure measuring system based on laser interference

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Embodiment Construction

[0034] The embodiment of the present invention detects the pressure change of the object to be measured by laser. Since the detection of the optical path is more accurate, the present invention can detect the pressure of the object to be measured more accurately, thereby effectively solving the problem of inaccurate pressure detection by the existing pressure sensor. The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] The embodiment of the present invention provides a pressure measurement system based on laser interference, see figure 1 , comprising: a launching device, an elastic pressure measuring device and a processor;

[0036] The emitting device is used to emit laser light with a preset wavelength, divide the laser light into two paths, ...

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Abstract

The invention discloses a pressure measuring system based on laser interference. Two paths of laser are emitted through an emitting device, one path is reflected to a processor through an elastic pressure measuring device, the other path is directly emitted to a processor, and the elastic pressure measuring device can perform elastic telescopic transformation according to the pressure change of ato-be-measured body, so the lengths of the light paths of the laser reflected by the elastic pressure measuring device are different, and finally the processor can obtain the direction and the size ofthe pressure emitted by the to-be-measured body according to the detection of the two paths of laser. Due to the fact that detection of the light path is more accurate, the pressure of the to-be-measured body can be detected more accurately, and the problem that an existing pressure sensor is inaccurate in pressure detection is effectively solved.

Description

technical field [0001] The invention relates to the field of mechanical technology, in particular to a pressure measuring system based on laser interference. Background technique [0002] Pressure sensor is a common concept in the field of measurement and testing. It has various types, such as resistance strain gauge, semiconductor strain gauge, piezoresistive, inductive, capacitive, resonant and capacitive acceleration. Most pressure sensors have their specific application areas. However, the detection accuracy of the existing pressure sensors is not too high, especially the detection accuracy of the elastic change of the flexible surface needs to be improved. Contents of the invention [0003] The invention provides a pressure measurement system based on laser interference to solve the problem of low detection accuracy of pressure sensors in the prior art. [0004] The invention provides a pressure measurement system based on laser interference, which is characterized ...

Claims

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Application Information

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IPC IPC(8): G01L1/24
CPCG01L1/241
Inventor 何立平湛月张晓龙王鹏飞张芮闻周砚扬马乐乐
Owner CHINA ACADEMY OF ELECTRONICS & INFORMATION TECH OF CETC