Investigation into Effect of Output Position and Applied Voltage on the Output Force Performance of the Electric Actuator

Abstract

Electric actuator is a kind of intelligent material for artificial muscles, which has the advantages of low driving voltage, large strain, good biocompatibility, good flexibility, low price, wide application prospect and high academic value. In this work, the influence of different DC voltage and different output position on the output force performance of the electric actuator was studied. The experimental results showed that the performance of the electric actuator was better when the DC voltage was 5V. At this time, the output force was 1.31mN, the output force density was 10mN/g, the response speed was 0.032mN/s, and the strain was 1.29%. When the output position was 20mm, the output force and the response speed of the electric actuator were reached the maximum, which were 3.3mN and 0.063mN/s, respectively, and the corresponding output force density was 25.19mN/g.