This work describes a sensor, in which the sensing head comprises a long period fiber grating (LPG) whose attenuation peak varies as function of its bending. The level of LPG bending is induced by the displacement of a micrometer translation stage (MTS) being possible therefore to measure microdisplacements. The sensing head is integrated in a fiber optic intensity sensor, referenced in frequency, which is immune to intensity fluctuations other than the ones caused by the LPG.
Micro-displacement measurement using a long period fiber grating in a self-referenced fiber optic intensity sensor
2004-01-01
144328 byte
Conference paper
Electronic Resource
English
British Library Conference Proceedings | 2004
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