Henderson, P.J. and Rao, Y.J. and Jackson, D.A. and Zhang, L.S. and Bennion, I. (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. (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: | 15 Apr 2009 11:09 |
| Resource URI: | http://kar.kent.ac.uk/id/eprint/17807 (The current URI for this page, for reference purposes) |
- Depositors only (login required):
