Improved method of phase detection scheme for displacement optic sensors

Gnewuch, H., Puscas, N.N., Jackson, David A., Podoleanu, Adrian G.H. (2006) Improved method of phase detection scheme for displacement optic sensors. Journal of Optoelectronics and Advanced Materials, 8 (1). pp. 387-390. ISSN 1454-4164. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Abstract

Based on a novel method for overcoming DC drift in RF subcarrier phase detection scheme for fibre optic sensors we propose an improved method for the measurement of small displacements and vibrations. The method works in open loop and is characterized by low distortions in the modulation process, good signal-to-noise ratio and low cost. Considering the receiver ideal, we obtained for the measurements of small distances a minimum of 0.74 ? m with a 6.6 × 10-7 dB dynamic range. The system can be exploited in the measurement of small distances, vibrations and seismic detection.

Item Type: Article
Uncontrolled keywords: Optic sensor, Phase detection scheme, Small displacement measurements
Subjects: Q Science > QC Physics
T Technology > TA Engineering (General). Civil engineering (General) > TA1520 Optical Engineering
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Giles Tarver
Date Deposited: 24 Jul 2015 15:01 UTC
Last Modified: 29 May 2019 14:54 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49756 (The current URI for this page, for reference purposes)
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