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Noncontact Measurement of Rotating Shaft Characteristics Using Optical Fiber Techniques

✍ Scribed by M.L. Everington; A.T. Augousti

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
150 KB
Volume
2
Category
Article
ISSN
1068-5200

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✦ Synopsis

A noncontact sensor for the measurement of angular velocity and torsional strain present in rotating shafts utilizing optical fibers is reported. Originally a system was developed capable of measuring angular velocity over a range from 5 to 1000 Hz to a resolution of 1 Hz relying solely upon variations in the intensity of reflected light produced by the surface profile of the rotating shaft. By adding a second identical channel collecting data at a different point along the shaft the signals may be crosscorrelated to indicate changes in the relative phase of the two points. From this information torques up to 0.16 Nm have been detected.

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