Temperature measurements in a fiber optic interferometric multichannel automated instrumentation system

Horacio Lamela; Jose Antonio Garcia Souto; Antonio J. Varo; Jose I. Santos

doi:10.1117/12.349764

31 May 1999 Temperature measurements in a fiber optic interferometric multichannel automated instrumentation system

Horacio Lamela, Jose Antonio Garcia Souto, Antonio J. Varo, Jose I. Santos

Proceedings Volume 3670, Smart Structures and Materials 1999: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials; (1999) https://doi.org/10.1117/12.349764
Event: 1999 Symposium on Smart Structures and Materials, 1999, Newport Beach, CA, United States

Abstract

In this paper we present the results of an automated instrumentation system that we have designed for temperature gradient characterization in composite materials using the optical fibers embedded in it to construct a multichannel interferometer. The objective is to develop a specific automated measurement system that is able to interrogate different interferometric channels and electronic sensors at the same time. It is also of main concern the study of the interferometric signal processing and the disturbance analysis of such technique applied to this multichannel approach. Synchronous differential optical phase measurements have been used for both characterizations of common phase errors and spatial temperature gradient. Details of the performance, the system design and the experimental results obtained are given.

Citation Download Citation

Horacio Lamela, Jose Antonio Garcia Souto, Antonio J. Varo, and Jose I. Santos "Temperature measurements in a fiber optic interferometric multichannel automated instrumentation system", Proc. SPIE 3670, Smart Structures and Materials 1999: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (31 May 1999); https://doi.org/10.1117/12.349764

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