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Proceedings Paper

Simple fiber optic silicon impact sensor for smart skins applications
Author(s): Dawei Liang; Luis Fraser Monteiro; Maria L. Fraser Monteiro; Brian Culshaw
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Paper Abstract

Four multimode fiber optic sensing units are combined to form a simple fiber optic silicon impact sensor. Three high resonant frequency sensing units are used to localize the impact point by detecting the impact induced acoustic waves and their relative arrival times. The impact location accuracy of 4 cm is achieved over a 1 m X 2 m area. The averaged signal output from four sensing units is utilized to compensate the acoustic attenuation effect of the real impact magnitude. The novel linear design of each sensing unit structure offers an excellent linearity for impact magnitude detection.

Paper Details

Date Published: 7 February 1994
PDF: 8 pages
Proc. SPIE 2072, Fiber Optic Physical Sensors in Manufacturing and Transportation, (7 February 1994); doi: 10.1117/12.166866
Show Author Affiliations
Dawei Liang, Univ. Nova de Lisboa (Portugal)
Luis Fraser Monteiro, Univ. Nova de Lisboa (Portugal)
Maria L. Fraser Monteiro, Univ. de Lisboa (Portugal)
Brian Culshaw, Univ. of Strathclyde (United Kingdom)


Published in SPIE Proceedings Vol. 2072:
Fiber Optic Physical Sensors in Manufacturing and Transportation
John W. Berthold; Richard O. Claus; Michael A. Marcus; Robert S. Rogowski, Editor(s)

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