A nonincremental interferometric fiber-optic measurement method for simultaneous detection of temperature and strain is reported. The method is based on the joint evaluation of the fiber-optical path length and of the fiber dispersion by means of nonincremental interferometric phase readings at two different wavelengths. The joint use of a low-coherence source and of multiple optical filtering of the interference term permits effective setting up of the method. The experimental results prove a strain measurement precision of approximately 10 µ∊ m in the presence of temperature variation of 30°C.

Nonincremental interferometric fiber-optic measurement method for simultaneous detection of temperature and strain

MARTINELLI, MARIO
1994-01-01

Abstract

A nonincremental interferometric fiber-optic measurement method for simultaneous detection of temperature and strain is reported. The method is based on the joint evaluation of the fiber-optical path length and of the fiber dispersion by means of nonincremental interferometric phase readings at two different wavelengths. The joint use of a low-coherence source and of multiple optical filtering of the interference term permits effective setting up of the method. The experimental results prove a strain measurement precision of approximately 10 µ∊ m in the presence of temperature variation of 30°C.
1994
Fiber optics; TLC
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/657853
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 17
  • ???jsp.display-item.citation.isi??? ND
social impact