Development of High-Speed/High-Torque MR Actuator Using Silicon Steel Sheet

Abstract

There are a lot of robot systems that directly touch and transmit the power to the users. Though it is very important that such robot systems are developed on consideration of safety, most of them are developed without argument or with abstract argument about safety. In this paper, firstly, we insist that safety of a robot system using MR Actuator can be estimated quantitatively and ensured mechanically. Secondly, the development of the High-Speed/High-Torque MR actuator is described. Response characteristics of the developed MR actuator are improved by using flat rolled silicon steel sheet. And lastly, basic characteristics of the new MR Actuator are demonstrated.