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Optical Engineering

Optical FM System for Measuring Mechanical Shock
Author(s): L. D. Ballard; Wm. S. Epstein; Ernest R. Smith; Seymour Edelman
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Paper Abstract

A technique is described for calibrating shock accelerometers by measuring the Doppler shift in light frequency produced by the change in velocity of a target. The system employs a quadrature laser interferometer and a single-side-band carrier insertion circuit to distinguish between positive and negative velocities. Key words: Accelerometer; calibration; Doppler; interferometer; laser; shock measuring; single-side-band.

Paper Details

Date Published: 1 September 1970
PDF: 4 pages
Opt. Eng. 8(6) 806229 doi: 10.1117/12.7971525
Published in: Optical Engineering Volume 8, Issue 6
Show Author Affiliations
L. D. Ballard, National Bureau of Standards (United States)
Wm. S. Epstein, National Bureau of Standards (United States)
Ernest R. Smith, Harry Diamond Laboratories (United States)
Seymour Edelman, National Bureau of Standards (United States)

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