Fiber bragg grating perimeter vibration sensor

Fiber bragg grating perimeter vibration sensor

The utility model discloses a fiber bragg grating perimeter vibration sensor. The sensor comprises a quartz glass tube, fixed ends, strain gauges, a mass block and a sensing optical fiber, the straingauges, the mass block and the sensing optical fiber are arranged in the quartz glass tube, the fixed...

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Hauptverfasser: HU TIE, LUO XIANTING, YU BENHUA, LIU QIN, HAN CHEN
Format: Patent
Sprache:chi ; eng
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MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES
MEASURING
PHYSICS
TESTING
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creator HU TIE
LUO XIANTING
YU BENHUA
LIU QIN
HAN CHEN
description The utility model discloses a fiber bragg grating perimeter vibration sensor. The sensor comprises a quartz glass tube, fixed ends, strain gauges, a mass block and a sensing optical fiber, the straingauges, the mass block and the sensing optical fiber are arranged in the quartz glass tube, the fixed ends are arranged at the two ends of the quartz glass tube, the strain gauges are arranged betweenthe fixed ends, and the mass block is arranged in the middles of the strain gauges; and the sensing optical fiber is provided with a first optical fiber grating and a second optical fiber grating which are fixed on the strain gauge in a sticking manner, and the first optical fiber grating and the second optical fiber grating are symmetrically distributed on the two sides of the mass block. The device is simple in structure, low in cost, convenient to install, high in measurement precision and low in missing report rate and false alarm rate. 本实用新型公开了一种光纤光栅周界振动传感器，包括石英玻璃管、固定端头、应变片、质量块和传感光纤，所述应变片、质量块和传感光纤设置在所述石英玻璃管内部，所述石
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subjects MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES
MEASURING
PHYSICS
TESTING
title Fiber bragg grating perimeter vibration sensor
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