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Proceedings Paper

Interferometric Sensors For Dc Measurands -A New Class Of Fiber Sensors
Author(s): A D Kersey; F Bucholtz; K Sinansky; A Dandridge
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Paper Abstract

Fiber optic interferometric sensors are typically susceptible to environmentally induced thermo/mechanical perturbations at low frequencies, which preclude their use as dc sensors. However, by using a fiber/transducer configuration in which strain in a linear transducing element is converted nonlinearly into strain in the fiber, the measurement frequency can be up-converted from dc to a frequency where near shot noise limited performance can be obtained. This technique is applicable to the dc or low frequency measurement of any field variable for which a suitable non-linear displacement to strain configuration can be constructed. In this paper the operation of a dc displacement, acceleration and pressure sensor is described, as well as the multiplexing of these sensors.

Paper Details

Date Published: 28 April 1987
PDF: 5 pages
Proc. SPIE 0718, Fiber Optic and Laser Sensors IV, (28 April 1987); doi: 10.1117/12.937516
Show Author Affiliations
A D Kersey, Naval Research Laboratory (United States)
F Bucholtz, Naval Research Laboratory (United States)
K Sinansky, Naval Research Laboratory (United States)
A Dandridge, Naval Research Laboratory (United States)


Published in SPIE Proceedings Vol. 0718:
Fiber Optic and Laser Sensors IV
Ramon P. DePaula; Eric Udd, Editor(s)

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