Strain sensor with low-temperature sensitivity based on a weakly multimode optical fibre using coherence multiplexing

Autor:	S Dokulilová, H Akhouayri, H Giovannini
Rok vydání:	1996
Předmět:	Materials science Optical fiber Multi-mode optical fiber Birefringence Computer simulation business.industry General Engineering General Physics and Astronomy Perturbation (astronomy) Strain sensor Multiplexing law.invention Optics law business Order of magnitude
Zdroj:	Pure and Applied Optics: Journal of the European Optical Society Part A. 5:833-844
ISSN:	1361-6617 0963-9659
DOI:	10.1088/0963-9659/5/6/009
Popis:	For strain measurements, we propose an intrinsic optical fibre sensor based on the interference between modes in a weakly multimode optical fibre. The sensor response to an external stress and the sensor behaviour without any perturbation are studied. A numerical simulation permits us to determine the opto-geometrical parameters of the fibres to be used. The experimental output signals recorded when the strain is varied are presented. Very good agreement with the numerical simulation is obtained. The measured thermal coefficient of this strain sensor is one order of magnitude smaller than that of sensors based on birefringent fibres.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::864e72798d5f14e8e5a6af057a466233 https://doi.org/10.1088/0963-9659/5/6/009 Zobrazit plný text záznamu