A fiber grating dual-parameter sensor of ditrigon cantilever beam for measurement of strain and temperature

Jinlong Zhang; Chongxiu Yu; Kuiru Wang; Cheng Li; Junying Zeng

doi:10.1117/12.757995

24 January 2008 A fiber grating dual-parameter sensor of ditrigon cantilever beam for measurement of strain and temperature

Jinlong Zhang, Chongxiu Yu, Kuiru Wang, Cheng Li, Junying Zeng

Author Affiliations +

Proceedings Volume 6829, Advanced Materials and Devices for Sensing and Imaging III; 68291Y (2008) https://doi.org/10.1117/12.757995
Event: Photonics Asia 2007, 2007, Beijing, China

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.

Citation Download Citation

Jinlong Zhang, Chongxiu Yu, Kuiru Wang, Cheng Li, and 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); https://doi.org/10.1117/12.757995

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