Share Email Print

Optical Engineering • Open Access

Liquid concentration measurement based on the optoacoustic effect and fiber Bragg grating sensor technology
Author(s): Min Rong; Lianshui Zhang

Paper Abstract

An experimental system for liquid concentration measurement was set up based on the optoacoustic effect and a fiber Bragg grating (FBG) underwater sound sensor. Measurement theory and each element of the experimental setup are introduced. The light beam was injected into the liquid by a fiber bundle with a graded-refractive-index lens at the end. A matched FBG was used to demodulate the wavelength shift signals from the sensing FBG. Preliminary experimental results of sodium carbonate liquid concentration measurement were obtained, which verifies the feasibility of the method.

Paper Details

Date Published: 1 April 2006
PDF: 3 pages
Opt. Eng. 45(4) 040501 doi: 10.1117/1.2189687
Published in: Optical Engineering Volume 45, Issue 4
Show Author Affiliations
Min Rong, Hebei Univ. (China)
Lianshui Zhang, Hebei Univ. (China)

© SPIE. Terms of Use
Back to Top