Simple fiber optic silicon impact sensor for smart skins applications

Dawei Liang; Luis Fraser Monteiro; Maria L. Fraser Monteiro; Brian Culshaw

doi:10.1117/12.166866

7 February 1994 Simple fiber optic silicon impact sensor for smart skins applications

Dawei Liang, Luis Fraser Monteiro, Maria L. Fraser Monteiro, Brian Culshaw

Proceedings Volume 2072, Fiber Optic Physical Sensors in Manufacturing and Transportation; (1994) https://doi.org/10.1117/12.166866
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

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.

Citation Download Citation

Dawei Liang, Luis Fraser Monteiro, Maria L. Fraser Monteiro, and Brian Culshaw "Simple fiber optic silicon impact sensor for smart skins applications", Proc. SPIE 2072, Fiber Optic Physical Sensors in Manufacturing and Transportation, (7 February 1994); https://doi.org/10.1117/12.166866

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