Multimeasurand multiplexed extrinsic Fabry-Perot interferometric sensors

Stephen H. Poland; Jan-Peter Bengtsson; Mohit Bhatnagar; K. C. Ravikumar; Marten J. de Vries; Richard O. Claus

doi:10.1117/12.173984

1 May 1994 Multimeasurand multiplexed extrinsic Fabry-Perot interferometric sensors

Stephen H. Poland, Jan-Peter Bengtsson, Mohit Bhatnagar, K. C. Ravikumar, Marten J. de Vries, Richard O. Claus

Proceedings Volume 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation; (1994) https://doi.org/10.1117/12.173984
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

Abstract

The commercialization of optical fiber sensors in smart structure applications largely depends on the development of a multi-sensor system, capable of simultaneously monitoring different optical fiber sensors. Efficient multi-sensor systems can be realized through multiplexing arrays of sensors within a system, reducing the number of input/output information channels between the support electronics and optical sensors. We demonstrate a sensor system, comprised of four multiplexed extrinsic Fabry-Perot interferometers, that uses a code division multiplexing technique to address each sensor. Qualitative measurements of strain and temperature, obtained with this multi-measurand multiplexing system, and an evaluation of crosstalk between sensors is presented.

Citation Download Citation

Stephen H. Poland, Jan-Peter Bengtsson, Mohit Bhatnagar, K. C. Ravikumar, Marten J. de Vries, and Richard O. Claus "Multimeasurand multiplexed extrinsic Fabry-Perot interferometric sensors", Proc. SPIE 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation, (1 May 1994); https://doi.org/10.1117/12.173984

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