Photonic Sensors, Volume. 5, Issue 4, 351(2015)
Self-Compensating Displacement Sensor Based on Hydramatic Structured Transducer and Fiber Bragg Grating
An optical fiber displacement sensor with a large measuring range for simultaneous displacement and temperature measurement is presented in this paper. We developed a specific transducer based on the piston and hydraumatic structure to realize a large displacement measurement, which combined the large measuring range and high precision into a single sensor system. The spectrum showed two reflection peaks used to compensate for cross-sensitivity in the displacement detection. This displacement sensor can linearly work in a large measuring displacement range greater than 45 mm with a high sensitivity of 0.036 nm/mm. The sensor we reported can be developed for real-time displacement monitoring in many industrial environments such as the mechanical shape or liquid level monitoring.
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Shimeng CHEN, Yun LIU, Xiuxin LIU, Yang ZHANG, Wei PENG. Self-Compensating Displacement Sensor Based on Hydramatic Structured Transducer and Fiber Bragg Grating[J]. Photonic Sensors, 2015, 5(4): 351
Received: Aug. 31, 2015
Accepted: Sep. 5, 2015
Published Online: Jan. 6, 2016
The Author Email: PENG Wei (wpeng@dlut.edu.cn)