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Proceedings Paper

Digital processing of an interferometric velocimeter for ballistic shock measurement
Author(s): Pankaj Kumar; Akhil Thomas; R. Stephen Weis; Tristan J. Tayag
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Paper Abstract

We have developed a ballistic shock sensor based on interferometric velocimetry. The requirements of the sensor are that it should measure the motion of an impacted armored plate with velocities up to 10 m/s, frequencies up to 100 kHz, and displacements not exceeding about 3 mm. Our fiber optic system uses a 3 × 3 fiber directional coupler and digital demodulation for passive stabilization of the interferometer. In this paper, we describe the digital signal processing for phase drift compensation and automatic calibration of the system. Simulation results will be presented.

Paper Details

Date Published: 10 September 2009
PDF: 9 pages
Proc. SPIE 7432, Optical Inspection and Metrology for Non-Optics Industries, 74320K (10 September 2009); doi: 10.1117/12.828498
Show Author Affiliations
Pankaj Kumar, Texas Christian Univ. (United States)
Akhil Thomas, Texas Christian Univ. (United States)
R. Stephen Weis, Texas Christian Univ. (United States)
Tristan J. Tayag, Texas Christian Univ. (United States)

Published in SPIE Proceedings Vol. 7432:
Optical Inspection and Metrology for Non-Optics Industries
Peisen S. Huang; Toru Yoshizawa; Kevin G. Harding, Editor(s)

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