Practical application of battery-free wireless sensor system with high efficiency and wide frequency band of magnetostrictive vibrational power generation

2016 Fiscal Year Final Research Report

• Project/Area Number: 26289073
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• 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)
• Co-Investigator(Kenkyū-buntansha): 山田 外史 金沢大学, 学内共同利用施設等, 研究員 (80019786) ; 小松崎 俊彦 金沢大学, 機械工学系, 准教授 (80293372)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 振動発電 / 磁歪材料 / 広帯域化

Outline of Final Research Achievements

Magnetostrictive vibration power generation is a power generation technology characterized by high power and high durability using Fe - Ga alloy. In this study, we widened the operating frequency of the device by devising measures such as utilizing nonlinear magnetic force of the permanent magnet, electrical control of the resonance frequency, and direct attachment of the device to the vibration source. As a result, the practicality of a wireless sensor system that autonomously operates by vibration power generation can be improved.

Free Research Field

振動発電