Sensing applications of a low-coherence fibre-optic interferometer measuring the refractive index of air

McMurtry, Stefan and Wright, John D. and Jackson, David A. (2001) Sensing applications of a low-coherence fibre-optic interferometer measuring the refractive index of air. Sensors and Actuators B: Chemical, 72 (1). pp. 69-74. ISSN 0925-4005. (The full text of this publication is not available from this repository)

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Official URL
http://dx.doi.org/10.1016/S0925-4005(00)00634-1

Abstract

A remote fiberised low-coherence interferometric sensor has been used to measure the refractive index of air. The relative humidity, temperature, pressure or carbon dioxide content may be determined from the measurement of the refractive index of air if the values of the other parameters are known. The sensor works linearly, for example, over the full range of humidity and does not suffer from aging or hysteresis. This maintenance-free sensor has a relative accuracy of 1.6% with a fast response time. The relative sensitivity of the sensor to changes in the values of the other parameters influencing the refractive index of air has also been deduced. The sensor is designed primarily for industrial applications where conventional electronic sensors cannot be used in environments where materials degradation prevents the use of conventional gas and humidity sensors. (C) 2001 Elsevier Science B.V. All rights reserved.

Item Type: Article
Additional information: 21 ELSEVIER SCIENCE SA 391EF
Uncontrolled keywords: humidity; temperature; pressure; carbon dioxide; optical sensors; tandem interferometry UPDATED EDLEN EQUATION; SENSOR
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: Maggie Francis
Date Deposited: 29 Oct 2008 17:18
Last Modified: 25 Jun 2014 13:57
Resource URI: http://kar.kent.ac.uk/id/eprint/10809 (The current URI for this page, for reference purposes)
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