360 Degrees Rotation Sensor Using A Chirped Fiber Grating
IEEE PHOTONICS TECHNOLOGY LETTERS(2014)
摘要
In this letter, a rotation sensor based on a chirped fiber grating for detecting the rotary position with a full 360 degrees shaft is proposed. A full circle reading 9.9 nm of wavelength shift for detecting the shaft's rotation angle is experimentally demonstrated. The sensor can be used to measure a rotor's rotation angle in random directions while continuously rotating in the same direction. The operation mechanism is mainly based on the shift of the reflective wavelength peak of a chirped fiber grating caused by a rolled ball type magnet in accordance with the shaft's rotated angle.
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关键词
Chirped fiber grating, fiber grating sensors, rotation angle sensor
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