New Technology for Completely Non-contact Pickup of Small Object: Challenge to mid-air acoustic tweezers

2023 Fiscal Year Final Research Report

• Project/Area Number: 22K18813
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 21:Electrical and electronic engineering and related fields
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: OKUBO KAN 東京都立大学, システムデザイン研究科, 准教授 (90336446)
• Project Period (FY): 2022-06-30 – 2024-03-31
• Keywords: 空中音響ピンセット / 音場制御 / 非接触 / 最適化

Outline of Final Research Achievements

This research aims to improve the robustness of the mid-air acoustic tweezers. The gadget will be deepened by combining array processing and real-time adaptive phase and amplitude control as elemental technologies to reach practical application. A compact system with phase and amplitude control and stable amplification is implemented. The current used is reduced due to the small size and optimization. The power supply is provided by two mobile batteries, thus decoupling the system from the commercial power supply. In other words, the compact mid-air acoustic tweezers have successfully gone off-grid, demonstrating the system's potential for wearability.

Free Research Field

計測工学

Academic Significance and Societal Importance of the Research Achievements

空中における非接触操作の検討は工学，薬学，化学などの分野で有用である．非対向型超音波振動子アレイを用いることで，ロボットアームなどのメカニカルアームの先端に取り付けることも可能となる．超音波振動子アレイを用いた空中音響制御技術への貢献がある．