A wireless composite optical bend loss sensor for pressure and shear measurement

Chu-Yu Huang; Wen-Jong Wu; Shih-Chieh Fu; Per G. Reinhall; Wei-Chih Wang

doi:10.1117/12.657559

15 March 2006 A wireless composite optical bend loss sensor for pressure and shear measurement

Chu-Yu Huang, Wen-Jong Wu, Shih-Chieh Fu, Per G. Reinhall, Wei-Chih Wang

Proceedings Volume 6177, Health Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems V; 61770W (2006) https://doi.org/10.1117/12.657559
Event: Nondestructive Evaluation for Health Monitoring and Diagnostics, 2006, San Diego, CA, United States

Abstract

A composite optical bend loss sensor for the measurement of pressure and shear has been developed. The sensor is composed of two layers of fiberoptic mesh sensors that are molded into a thin polydimethylsiloxane (PDMS) substrate. A 3-D displacement map is generated based on bent-induced intensity attenuations in the fibers when the sensor is pressed. The new design overcame some of the coupling and instability problems in our previously reported microfabricated optical bend loss sensor. Here we will report our preliminary study on the sensor including results from the normal and shear load measurement. The paper will also discuss a RF based wireless data acquisition system that we have developed and demonstrate its operation with the composite sensor.

Citation Download Citation

Chu-Yu Huang, Wen-Jong Wu, Shih-Chieh Fu, Per G. Reinhall, and Wei-Chih Wang "A wireless composite optical bend loss sensor for pressure and shear measurement", Proc. SPIE 6177, Health Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems V, 61770W (15 March 2006); https://doi.org/10.1117/12.657559

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