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5 March 2018 Measurement of remote micro vibration based on laser feedback interference
Peng Wu, Shuijie Qin, Ning Xu
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Proceedings Volume 10710, Young Scientists Forum 2017; 107101P (2018) https://doi.org/10.1117/12.2317538
Event: Young Scientists Forum 2017, 2017, Shanghai, China
Abstract
The method of remote micro-vibration measurement is studied and presented based on the laser feedback effect in this paper, and the key factors of remote vibration measurement are analyzed. The vibration measurement system is designed and built based on the laser feedback and the research of the remote micro vibration measurement is carried out. The system has ultrahigh measuring sensitivity and the working distance is 25 meters, which can measure the vibration of non-cooperative target. The system has the capability to realize the non-contact measurement of remote micro-vibration at different driving signals，and can fulfill the complex vibration measurement and reproduction of multiple frequencies. It can identify the voice signal，and the voice signal reproduced is clear to hear. The system can meet various requirements of vibration measurement and has great significance in practical application.
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Peng Wu, Shuijie Qin, and Ning Xu "Measurement of remote micro vibration based on laser feedback interference", Proc. SPIE 10710, Young Scientists Forum 2017, 107101P (5 March 2018); https://doi.org/10.1117/12.2317538
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KEYWORDS
Vibrometry
Laser applications
Laser systems engineering
Interferometry
Laser interferometry
Interferometers
Precision measurement
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