Recent progress in applications of in-fibre Bragg grating sensors
. Rao
Abstract
In-fibre Bragg grating (FBG) sensor technology has e one of the most rapidly progressing sensing topics of this decade in the field of optical fibre sensors. FBG sensors are currently emerging from the laboratory to find practical applications. Rapid progress has been made in both sensor system developments and applications in recent years. This article presents a systematic review of recent progress in applications of FBG sensors in posite and concrete structures, the electrical power industry, medicine, and chemical sensing.
1. Introduction
In-fibre Bragg grating (FBG) sensors have been subject to continuous and rapid development since they were first demonstrated for strain and temperature measurement about 10 years ago. The main reason for this is because FBG sensors have a number of distinguishing advantages over other implementations of fibre-optic sensors, including potentially low-cost and unique wavelength-multiplexing capacity .The transduction mechanism is the modulation of the reflection wavelength of the sensing element, for example, thus avoiding the ambiguity of a phase measurement in an interferometric sensor or the requirement for referencing inherent in an interferometric one. FBG sensors seem to be ideal for realising so-called "fibre-optic Smart structures" where fibre-o
外文论文 来自淘豆网m.daumloan.com转载请标明出处.
