FBG (Fiber Bragg Grating) two-dimensional vibration sensor

The utility model discloses an FBG (Fiber Bragg Grating) two-dimensional vibration sensor, which has good index of each character and can be applied to the health state monitor for large-scale civil engineering, a flexible protective screen, a protection fence and the like. The FBG two-dimensional v...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WEI YONGXING, WANG ZHIMENG, ZHANG DONGSHENG, LI ANHONG, LAI ZIHUI, CHU YUGUANG, DAI YUTANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	The utility model discloses an FBG (Fiber Bragg Grating) two-dimensional vibration sensor, which has good index of each character and can be applied to the health state monitor for large-scale civil engineering, a flexible protective screen, a protection fence and the like. The FBG two-dimensional vibration sensor comprises a steel pipe which is arranged in a box body, wherein two ends of the steel pipe are fixedly connected with the box body, the middle part of the steel pipe is fixedly provided with a mass block, the steel pipe surfaces at two sides of the mass block are respectively pasted and fixedly provided with a first pair of FBG and a second pair of FBG, the first pair of the FBG which is formed by an FBG I and an FBG II which are in 180-degree interlacing is positioned on a vertical flat surface, the second pair of the FBG which is formed by an FBG III and an FBG IV which are in 180-degree interlacing is position on a horizontal surface, and the FBG I and the FBG II, the FBG II and the FBG III as we