Optical Tracking Techniques In Industrial Vibration Measurement

S. C. L. Botcherby

doi:10.1117/12.952917

31 July 1989 Optical Tracking Techniques In Industrial Vibration Measurement

S. C. L. Botcherby

Proceedings Volume 1084, Stress and Vibration: Recent Developments in Industrial Measurement and Analysis; (1989) https://doi.org/10.1117/12.952917
Event: Sira/Stress and Vibration: Recent Developments in Measurement and Analysis, 1989, London, United Kingdom

Abstract

For more than twenty years, the laser has provided the opportunity of making non contact velocity and vibration measurements at long range and with very great sensitivity using the heterodyne or Doppler principle. For a given wavelength, the sensitivity depends on the amount of light received back from the target and the measurement bandwidth. Thus, at ranges up to 300m, sub micron sensitivity can be obtained in bandwidths up to 1 Khz, while at the other extreme at very close range, picometer vibration levels of mirror like targets can be measured in bandwidths of several Mhz.

Citation Download Citation

S. C. L. Botcherby "Optical Tracking Techniques In Industrial Vibration Measurement", Proc. SPIE 1084, Stress and Vibration: Recent Developments in Industrial Measurement and Analysis, (31 July 1989); https://doi.org/10.1117/12.952917

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