Temperature and strain measurement by combining ILFE and Bragg grating optical fiber sensors

This paper presents two optical fiber sensor configurations that are capable of simultaneously measuring temperature and strain. These sensor configurations use serial and parallel combinations of in-line fiber etalon (ILFE) and in-fiber Bragg grating sensors, along with wavelength division multiple...

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Veröffentlicht in:	Experimental mechanics 1997-12, Vol.37 (4), p.414-419
Hauptverfasser:	SINGH, H, SIRKIS, J. S
Format:	Artikel
Sprache:	eng
Schlagworte:	Exact sciences and technology Fundamental areas of phenomenology (including applications) Measurement and testing methods Measurement methods and techniques in continuum mechanics of solids Physics Solid mechanics Structural and continuum mechanics
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Zusammenfassung:	This paper presents two optical fiber sensor configurations that are capable of simultaneously measuring temperature and strain. These sensor configurations use serial and parallel combinations of in-line fiber etalon (ILFE) and in-fiber Bragg grating sensors, along with wavelength division multiplexing concepts. The results obtained while simultaneously varying the temperature over 130 C and strain field over 1500 microepsilon showed favorable agreement with thermistors and resistance strain gages. (Author)
ISSN:	0014-4851 1741-2765
DOI:	10.1007/BF02317307