Plasma actuator that does not require a high-voltage power supply

Drive voltage 1/10! Multi-electrode plasma actuator that doesn’t generate backflow or actuator that doesn’t generate backflow or

Overview

　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.

Product Application

Since the control of airflow is expected to reduce the frictional resistance and noise, it can be applied to following:
・Installation on aircraft, automobiles, railroad vehicles
・Installation on turbine generator, gas turbine

IP Data

IP No.　 ： US10842013 (JP patent application exists)　
Inventor ： SATO Shintaro, OHNISHI Naofumi　　
keyword ： Measurement, Machine, Control