Coherence multiplexing of in-line displacement and temperature sensors

Daniele Inaudi

doi:10.1117/12.200603

1 July 1995 Coherence multiplexing of in-line displacement and temperature sensors

Daniele Inaudi

Author Affiliations +

Optical Engineering, Vol. 34, Issue 7, (July 1995). https://doi.org/10.1117/12.200603

Abstract

A novel in-line multiplexing scheme for optical displacement and temperature sensors based on low-coherence interferometry is presented. It allows the measurement of deformations with a resolution of 10 μm and temperatures with a resolution of 1°C m. The multiplexing of two displacement sensors and one temperature sensor along the same fiber line is demonstrated experimentally, and a theoretical calculation for a system with 10 sensors is presented. This type of sensor would be especially useful for the long-time monitoring of large structures.

Citation Download Citation

Daniele Inaudi "Coherence multiplexing of in-line displacement and temperature sensors," Optical Engineering 34(7), (1 July 1995). https://doi.org/10.1117/12.200603

Published: 1 July 1995

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