24 January 2008 A fiber grating dual-parameter sensor of ditrigon cantilever beam for measurement of strain and temperature
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Abstract
To solve the problem of cross sensitization when the strain and the temperature are measured at the same time, we propose a structure of a ditrigon cantilever beam of uniform strength, realize a sensor structure in which the strain and the temperature can measured at the same time by a single fiber grating. The beam is bended and elongate the grating sticked on the surface of the beam, the reflectance spectrum from the grating is splitted into a double-peak spectrum. The strain can be measured by the space of the double peak. The variation of temperature is converted into the whole displacement of the reflectance spectrum.
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Jinlong Zhang, Jinlong Zhang, Chongxiu Yu, Chongxiu Yu, Kuiru Wang, Kuiru Wang, Cheng Li, Cheng Li, Junying Zeng, Junying Zeng, } "A fiber grating dual-parameter sensor of ditrigon cantilever beam for measurement of strain and temperature", Proc. SPIE 6829, Advanced Materials and Devices for Sensing and Imaging III, 68291Y (24 January 2008); doi: 10.1117/12.757995; https://doi.org/10.1117/12.757995
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