Simultaneous Measurement of Tilt Angle and Temperature With Pendulum-Based Fiber Bragg Grating Sensor

A fiber optic tilt senor for simultaneous measurement of 2-D tilt angle and temperature is proposed and demonstrated experimentally. The sensing head consists of two fiber Bragg gratings (FBGs) attached on a specially designed columnar pendulum. Reflection peaks of the FBGs split and resonant wavele...

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Veröffentlicht in:	IEEE sensors journal 2015-11, Vol.15 (11), p.6381-6384
Hauptverfasser:	Yang, Runguang, Bao, Hualong, Zhang, Shuqin, Ni, Kai, Zheng, Yangzi, Dong, Xinyong
Format:	Artikel
Sprache:	eng
Schlagworte:	Bragg gratings Camber Fiber Bragg gratings Fiber gratings Fiber optics fiber-optic sensors Fibers Optical fiber sensors Optical fibers Reflection Sensors Temperature measurement Temperature sensors Tilt tilt measurement Wavelength measurement Wavelengths
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Beschreibung
Zusammenfassung:	A fiber optic tilt senor for simultaneous measurement of 2-D tilt angle and temperature is proposed and demonstrated experimentally. The sensing head consists of two fiber Bragg gratings (FBGs) attached on a specially designed columnar pendulum. Reflection peaks of the FBGs split and resonant wavelengths shift with tilt and temperature variations. A maximum tilt angle sensitivity of 0.074 nm/°, accuracy of 0.18°, and temperature sensitivity of 0.021 nm/°C have been achieved within the tilt angle range of 0°-40°.
ISSN:	1530-437X 1558-1748
DOI:	10.1109/JSEN.2015.2458894