Title :
Simultaneous measurement of strain and temperature using a fiber Bragg grating and a thermochromic material
Author :
Fernandez-Valdivielso, C. ; Matia, I.R. ; Arregui, F.J.
Author_Institution :
Departamento de Ingenieria Electrica y Electronica, Univ. Publica de Navarra, Pamplona, Spain
Abstract :
A new scheme for simultaneous measurement of temperature and strain using fiber Bragg grating (FBG) has been presented. This dual sensor uses a FBG and a thermochromic material attached at the end of the same fiber pigtail; the first one to measure the strain and the second one to measure temperature and correct the information of the FBG. The system has been successfully tested in the range from 20/spl deg/C to 80/spl deg/C.
Keywords :
Bragg gratings; fibre optic sensors; strain sensors; temperature sensors; thermo-optical effects; 20 to 80 degC; dual sensor; fiber Bragg grating; strain measurement; temperature measurement; thermochromic material; Bragg gratings; Capacitive sensors; Fiber gratings; Optical fiber sensors; Optical fiber testing; Strain measurement; Temperature measurement; Temperature sensors; Thermal sensors; Thermochromism;
Conference_Titel :
Optical Fiber Sensors Conference Technical Digest, 2002. Ofs 2002, 15th
Conference_Location :
Portland, OR, USA
Print_ISBN :
0-7803-7289-1
DOI :
10.1109/OFS.2002.1000537
