Title :
Dynamic strain characteristics of multiple FBG sensor system using CDMA
Author :
Lee, Hojoon ; Park, Jungsoo
Author_Institution :
Opt. Commun. Lab., Hoseo Univ., Chung-Nam, South Korea
Abstract :
A new multiple fibre Bragg grating (FBG) sensor system for high speed strain signal is proposed. The new system using the CDMA technology is able to separate out the signals of multiple FBG sensors. Linearity of the response for the applying strains was observed. The rapid response of the system for the dynamic strain to FBG sensors was also confirmed. Crosstalk levels between sensor channels appear low. If broadband light source is used and length of PRBS is sufficient, CDMA technology can make it possible to multiplex numerous sensors
Keywords :
Bragg gratings; code division multiple access; fibre optic sensors; optical crosstalk; strain measurement; strain sensors; CDMA technology; broadband light source; crosstalk levels; dynamic strain; fibre Bragg grating sensor system; high speed strain signal; multiple FBG sensor system; multiple FBG sensors; rapid response; sensor channels; sensor multiplexing; Bragg gratings; Capacitive sensors; Crosstalk; Fiber gratings; Light sources; Linearity; Multiaccess communication; Optical fiber sensors; Sensor phenomena and characterization; Sensor systems;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.969093
