A vibration detection mechanism
A detection mechanism and detection head technology, applied in the field of scientific detection, can solve the problems of large electromagnetic influence, high processing cost, uneven detection accuracy, etc., and achieve the effect of good anti-interference performance and low price
Active Publication Date: 2022-07-26
平瑞安防(深圳)有限公司
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Problems solved by technology
[0003] However, traditional electrical measuring devices are greatly affected by electromagnetism, and the use of vibration-receiving thin films requires high processing costs, and the detection accuracy varies due to the different properties of the films.
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[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0025] see Figure 1-3 , a vibration detection mechanism, including a light source 1, and the light source 1 uses a short wave whose wavelength is adapted to the gas used. The transmitting end of the light source 1 is connected with a beam splitter 2, the first transmitting end of the beam splitter 2 is connected with a first collimator 3, and the transmitting end of the first collimator 3 is fixedly connected with a vibration detect...
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The invention relates to the technical field of speech recognition, and discloses a vibration detection mechanism, comprising a light source, a beam splitter is connected to a transmitting end of the light source, and a first collimator is connected to a first transmitting end of the beam splitter, The transmitting end of the first collimator is fixedly connected with a vibration probe, a second collimator is arranged above the vibration probe, and the second transmitting end of the beam splitter is connected to the second receiving end of the beam combiner. The first receiving end of the beam combiner is connected to the second collimator, the transmitting end of the beam combiner is connected with an optical fiber demodulator, and the output end of the optical fiber demodulator is connected with a signal Analysis module. When the transparent vibrating film vibrates, the optical path of the light in the high refractive index medium is changed, so that the phase of a beam of coherent light input in the beam combiner changes, and the vibration information can be obtained by demodulating the final interference light to detect the vibration amplitude and frequency. The whole process is free from electromagnetic interference, and the key vibration film can be made of cheap light-transmitting plastic film.
Description
technical field [0001] The invention relates to the technical field of scientific detection, in particular to a vibration detection mechanism. Background technique [0002] Speech recognition is an interdisciplinary subject. In the past two decades, speech recognition technology has made significant progress and has begun to move from the laboratory to the market. It is expected that in the next 10 years, speech recognition technology will enter various fields such as industry, home appliances, communications, automotive electronics, medical care, home services, and consumer electronics. With the needs of life and production, such as seismic wave detection in coal mines and speech recognition in daily life, vibration detection mechanisms have been used. The development of sensor technology is advancing with each passing day, and it is becoming more and more digital, multi-functional and intelligent. At present, most of the common electric vibration sensor devices represent...
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IPC IPC(8): G01H9/00
CPCG01H9/004
Inventor 曲士超徐孟然
Owner 平瑞安防(深圳)有限公司