COHERENCE MULTIPLEXING OF IN-LINE DISPLACEMENT AND TEMPERATURE SENSORS

Authors
Citation
D. Inaudi, COHERENCE MULTIPLEXING OF IN-LINE DISPLACEMENT AND TEMPERATURE SENSORS, Optical engineering, 34(7), 1995, pp. 1912-1915
Citations number
6
Categorie Soggetti
Optics
Journal title
ISSN journal
00913286
Volume
34
Issue
7
Year of publication
1995
Pages
1912 - 1915
Database
ISI
SICI code
0091-3286(1995)34:7<1912:CMOIDA>2.0.ZU;2-0
Abstract
A novel in-line multiplexing scheme for optical displacement and tempe rature sensors based on low-coherence interferometry is presented. It allows the measurement of deformations with a resolution of 10 mu m an d temperatures with a resolution of 1 degrees C m. The multiplexing of two displacement sensors and one temperature sensor along the same fi ber line is demonstrated experimentally, and a theoretical calculation for a system with 10 sensors is presented. This type of sensor would be especially useful for the long-time monitoring of large structures.