Tohoku University Technology: Plasma actuator that does not require a high-voltage power supply: T18-069
Drive voltage 1/10! Multi-electrode plasma actuator that doesn’t generate backflow or actuator that doesn’t generate backflow or
Plasma actuator is an element that generates airflow using the electric current force generated by the electrical discharge. It is attracting attention as the next generation of airflow control device because it can actively control the flow with a simple configuration that does not use moving parts. However, the conventional plasma actuator needs a large quantity of high-voltage power supply because it requires a drive voltage of over 10000V. The development of multi-electrode plasma actuator with multiple elements lined up for low-voltage drive has been done, but it has not yet been put to a real practical use due to a number of issues, such as arc discharge between multiple electrodes and interference between electrodes that causes electric current force in the opposite direction of the main flow, which reduces performance. This invention is about a multi-electrode plasma actuator that can prevent arc discharge between electrodes and that do not generate backflow. Unlike conventional method, it is possible to reduce the driving voltage of the plasma actuator to a few hundred volts in principle because the performance is improved by increasing the number of electrodes.
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.
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