Development of U-shaped magnetostrictive vibration power generation device for practical power generation by micro vibration of bridge

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K13926
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Kanazawa University
• Principal Investigator: Ueno Toshiyuki 金沢大学, 電子情報学系, 准教授 (30338256)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 振動発電 / 磁歪材料 / U字構造 / 微小振動

Outline of Final Research Achievements

We are conducting research on technology to extract practical electric power from minute vibration such as bridge. In this time, the sensitivity was greatly improved by making the magnetostrictive vibration power generation device into a U-shaped frame structure. As a result, we succeeded in extracting a generated voltage of 1 V and electric power of 1 mW or more from a minute vibration of about 30 Hz, about 0.1 G to 0.2 G. As a result, the possibility that the wireless sensor system operates autonomously with minute vibration such as a bridge was demonstrated.

Free Research Field

振動発電