posted on 2015-12-07, 14:17authored byT.H. Wilmshurst, Steve Rothberg, Neil A. Halliwell
A noncontact torquemeter is described whose operation relies on the periodicity of the dynamic laser speckle pattern backscattered from a rotating shaft. At 1800 RPM, some 100 time-resolved torque readings per cycle are possible to an accuracy of approximately 1' of shaft twist. In addition there is inbuilt immunity to shaft speed fluctuations and whole body vibrations.
Funding
The work is supported by the Paul Instrument Fund of The Royal Society.
History
School
Mechanical, Electrical and Manufacturing Engineering
Published in
ELECTRONICS LETTERS
Volume
27
Issue
2
Pages
186 - 187 (2)
Citation
WILMSHURST, T.H., ROTHBERG, S. and HALLIWELL, N.A., 1991. Laser torquemeter - a new instrument. Electronics Letters, 27 (2), pp. 186 - 187.
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