Simultaneous multi-parameter monitoring using a serial fibre-Fabry-Perot array with low-coherence and wavelength-domain detection

Henderson, Philip J. and Rao, Yun Jiang and Jackson, David A. and Zhang, Leishi and Bennion, Ian (1998) Simultaneous multi-parameter monitoring using a serial fibre-Fabry-Perot array with low-coherence and wavelength-domain detection. Measurement Science & Technology, 9 (11). pp. 1837-1839. ISSN 0957-0233. (The full text of this publication is not available from this repository)

The full text of this publication is not available from this repository. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1088/0957-0233/9/11/007

Abstract

A sensor multiplexing scheme for the simultaneous monitoring of dynamic strain and temperature is presented. The scheme combines low-coherence and wavelength-division signal processing with a serial array of fibre-fabry-Perot (FFP) interferometric sensors defined by in-fibre grating mirrors of matched Bragg wavelength. Heterodyne measurements of signal phase from a 39 cm long FFP interferometer result in a dynamic strain resolution of about 0.14 ns Hz(-1/2) at acoustic frequencies. Temperature measurements via the induced changes in Bragg wavelength have a sensitivity of about 8 pm degrees C-1. The cross-talk between the strain and temperature channels is within the system noise.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA166 Instrumentation
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: R.F. Xu
Date Deposited: 15 Apr 2009 11:09
Last Modified: 25 Jun 2014 14:51
Resource URI: http://kar.kent.ac.uk/id/eprint/17807 (The current URI for this page, for reference purposes)
  • Depositors only (login required):