US Patent 11486777 FBG-based torsion sensor device
Patent 11486777 was granted and assigned to Korea Institute of Science and Technology on November, 2022 by the United States Patent and Trademark Office.
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US Patent 11486777 FBG-based torsion sensor device
Embodiments relate to a torsion sensor device which measures a degree of torsion of a measurement object by using a fiber Bragg gratings (FBG) sensor, the sensor device comprising: an FBG sensor including a sensing unit formed in one section of an elongated optical fiber; and a fixing device for fixing and supporting the FBG sensor to cause displacement of the FBG sensor according to motion of the measurement object, wherein the fixing device includes a bending prevention member to enable the sensing unit to have torsion displacement without bending displacement, according to the motion of the measurement object.
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