Development of Vibration Sensor Using Giant Magnetostrictive Material for Self-Powered Structural Health Monitoring System

被引：4

作者：

Koganezawa, Shinji ^{[1
]}

Ishii, Tomotake ^{[2
]}

Tani, Hiroshi ^{[1
]}

Lu, Renguo ^{[1
]}

Tagawa, Norio ^{[1
]}

机构：

[1] Kansai Univ, Dept Mech Engn, Suita, Osaka 5648680, Japan

[2] Kansai Univ, Grad Sch Sci & Engn, Suita, Osaka 5648680, Japan

来源：

2020 IEEE SENSORS | 2020年

关键词：

vibration-sensing device; energy harvester; giant magnetostrictive effect; transportation infrastructure; structural health monitoring system; bridges;

D O I：

10.1109/sensors47125.2020.9278840

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel vibration-sensing device based on the giant magnetostrictive effect for a self-powered structural health monitoring system was developed. This device can produce a large voltage because the magnetostrictive rod, in principle, can generate a large variation in magnetic flux density, even when it is subjected to small and low-frequency vibrations of the bridge girder. Therefore, the device could function as a power generator to supply power to a storage battery, when it is not being used as a vibration sensor, to drive the electric circuit. A field test for the developed device was conducted. The experimental results confirmed that the device worked as a vibration sensor with considerable accuracy in detecting the natural frequency of the bridge, even when subjected to the intermittent load of passing cars.

引用

页数：4

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