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Proceedings Paper

Multichannel fiber optic laser vibrometer
Author(s): Rupak Changkakoti; Roman V. Kruzelecky; Asoke Kumar Ghosh; Wanping Zheng
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Paper Abstract

A non-contact nine channel fiber optic laser vibrometer has been developed to measure the vibrations of low mass flexible space structures. The Multi-Channel Fiber optic VIBrometer (MCFVIB) system is based on a commercial single channel laser vibrometer and a fiber-optic distribution system. This entailed the development of appropriate systems architecture for the optical signals, active 1 X 9 optical switch, and optical sensor heads suitable for coupling the reflected test signal back into the fiber optic system. MCFVIB employs single-mode, polarization maintaining fibers to maintain the signal coherence. The performance of the MCFVIB was tested at various vibrational frequencies using a shaker. Correlation of the measurements against those measured by an accelerometer indicate excellent linearity and accuracy for the fiber optic vibrometer system.

Paper Details

Date Published: 24 September 1998
PDF: 10 pages
Proc. SPIE 3414, Opto-Contact: Workshop on Technology Transfers, Start-Up Opportunities,and Strategic Alliances, (24 September 1998); doi: 10.1117/12.323515
Show Author Affiliations
Rupak Changkakoti, MPB Technologies, Inc. (Canada)
Roman V. Kruzelecky, MPB Technologies, Inc. (Canada)
Asoke Kumar Ghosh, MPB Technologies, Inc. (Canada)
Wanping Zheng, Canadian Space Agency (Canada)


Published in SPIE Proceedings Vol. 3414:
Opto-Contact: Workshop on Technology Transfers, Start-Up Opportunities,and Strategic Alliances
Robert J. L. Corriveau; M. J. Soileau; Michel Auger, Editor(s)

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