抄録
In recent years, new actuators with multiple degrees of rotational freedoms (DoRFs) drive were produced and those applications have attracted attention. On the other hand, rotary encoder that enables to detect multi-DoRF has not been developed enough. Therefore the development of a new rotary encoder is necessary. In this paper, we aim at developing a new non-contact rotary encoder that enables to detect multi-DoRF. We propose a new method to detect multi DoRFs without touching and exam the effectiveness of this method. As a result of developing a prototype rotary encoder, we showed the efficacy of proposed method and confirmed that (1) the detection performance of this method was affected by the magnetic repeatability coefficient, and that (2) the performance required to be less than 0.2 magnetic repeatability coefficient to keep 100 percentage of correct answer.
