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Body Vibration Compensated Laser Doppler Vibrometer using Adaptive Filtering  

최성욱 (중앙대학 전기전자공학부)
조영균 (중앙대학 전기전자공학부)
김호성 (중앙대학 전기전자공학부)
장태규 (중앙대학 전기전자공학부)
강민식 (경원대학 기계공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers C / v.52, no.11, 2003 , pp. 516-520 More about this Journal
Abstract
A novel dual beam heterodyne Laser Doppler Vibrometer (LDV) in conjunction with FM demodulators, which utilizes a residual beam to eliminate the perturbationdue due to the vibrometer body vibration without any external reference surface, has been developed. Residual laser beam from the beam splitter is used to pick up the vibration of damper, which is mounted in the vibrometer, and combined with reference beam at the photodetector. The output signal of this detector and main signal are processed to extract the object vibration, using a least mean square adaptive algorithm. It is shown experimentally that the body vibration of 1-5 Hz can be effectively removed from the measured signal using DSP technology to extract unperturbed 100 Hz original signal.
Keywords
LDV; Vibration compensation; Adaptive Fillter;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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