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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 31 — Nov. 1, 2001
  • pp: 5610–5614

Laser-Diode Interferometric Heterodyne Vibrometer: Application to Linear Motor Control

Ahmed Chebbour, Tijani Gharbi, and Gilbert Tribillon  »View Author Affiliations


Applied Optics, Vol. 40, Issue 31, pp. 5610-5614 (2001)
http://dx.doi.org/10.1364/AO.40.005610


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Abstract

We describe an interferometric heterodyne vibrometer that uses a laser diode with a triangular modulation frequency. This optical sensor is used to probe a vibrating polished surface. As an illustration of the sensor performance, the control of nonuniform velocity of a linear motor is achieved. The technique can be used over a large bandwidth between a few hertz and several tens of kilohertz. Generalization of the technique to the sensing of frequency vibrations is also demonstrated theoretically.

© 2001 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.7250) Instrumentation, measurement, and metrology : Velocimetry
(140.2020) Lasers and laser optics : Diode lasers
(280.3340) Remote sensing and sensors : Laser Doppler velocimetry

Citation
Ahmed Chebbour, Tijani Gharbi, and Gilbert Tribillon, "Laser-Diode Interferometric Heterodyne Vibrometer: Application to Linear Motor Control," Appl. Opt. 40, 5610-5614 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-31-5610

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