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Applied Optics

Applied Optics


  • Vol. 23, Iss. 3 — Feb. 1, 1984
  • pp: 486–491

Tilting-mirror fiber-optic accelerometer

Richard A. Soref and Donald H. McMahon  »View Author Affiliations

Applied Optics, Vol. 23, Issue 3, pp. 486-491 (1984)

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Experimental and theoretical results are presented on a simple compact fiber-optic sensor that uses a mirror placed on the end of a mass-loaded cantilevered elastic beam. Deflections of the beam due to acceleration are read out with multimode optical fibers and with a quarter-pitch GRIN rod lens. Two output fibers are used in a balanced-detection scheme. In the audio-frequency range, the minimum detectable acceleration is 2.4 × 10−6 Grms, and the maximum measurable acceleration is 39 Grms. The device is also sensitive to dc accelerations. However, during dc sensing, a fiber bending noise is found. This noise decreases the dynamic range of the accelerometer.

© 1984 Optical Society of America

Original Manuscript: October 3, 1983
Published: February 1, 1984

Richard A. Soref and Donald H. McMahon, "Tilting-mirror fiber-optic accelerometer," Appl. Opt. 23, 486-491 (1984)

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