Affiliation:
1. Batteile, Geneva Research Centres, Switzerland
Abstract
An overview of optical fibre sensors and instrumentation is presented. Sensors can be divided into two types: continuous transducers in which light is modulated along the whole length of the fibre, and point transducers which are sensitive to an external variable at a single point. Optical effects in fibres are considered for the six types of physical perturbations: mechanical, electrical, magnetic, thermal, radiation and chemical perturbations. Instrumentation systems for fibre sensors may be categorised according to the way in which the light is modulated: Phase, amplitude, wavelength, polarisation, time-resolved or time varying modulation. These instrumentation schemes are compared for sensitivity and performance and numerous examples of practical sensors are cited for each category.
Subject
Applied Mathematics,Control and Optimization,Instrumentation
Cited by
11 articles.
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