An acceleration transducer based on optical fiber Bragging grating with temperature self-compensating function

Chuan Wang; Qiyu Lu; Jinping Ou

doi:10.1117/12.2006735

19 April 2013 An acceleration transducer based on optical fiber Bragging grating with temperature self-compensating function

Chuan Wang, Qiyu Lu, Jinping Ou

Author Affiliations +

Proceedings Volume 8692, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013; 86924J (2013) https://doi.org/10.1117/12.2006735
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

Abstract

Along with the maturity and development of Optical Fiber Bragg Grating (OFBG) sensing technology, OFBG sensors with different functions have been developed and applied in large-scale engineering structure health monitoring and construction monitoring. In this paper, an acceleration transducer with a characteristic of temperature self-compensating is introduced. It is a cantilever structure model with equal strength beam, fixed with a mass block at the end of the beam, and two consecutive OFBGs are pasted on the upper and lower surface axis of the beam at the corresponding places. Because of the two OFBGs are near to each other, the wavelength changes caused by the environment temperature is the same. According to the temperature self-compensating principle and acceleration measurement principle developed in this paper, we can achieve the temperature self-compensating function of real acceleration measurement by simply calculating the test results. The experimental results show that this type of acceleration transducer has high sensitivity and stability and its measuring range can also be changed according to the practical requirements. This type of acceleration transducer is suitable for engineering structure acceleration measurement in different environment conditions.

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Chuan Wang, Qiyu Lu, and Jinping Ou "An acceleration transducer based on optical fiber Bragging grating with temperature self-compensating function", Proc. SPIE 8692, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013, 86924J (19 April 2013); https://doi.org/10.1117/12.2006735

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KEYWORDS

Transducers

Temperature metrology

Sensors

Optical fibers

Structural engineering

Sensor technology

Civil engineering

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