생체 모방 종이 작동기 힘의 측정 및 모델링에 관한 연구

초록

Generally, characteristics of electromechanical actuators are coupled with the mechanical and the electrical properties. Important mechanical parameters of these actuators are the achievable force and displacement in the presence of electric field. These mechanical parameters are related to the stress and strain of the materials and the actuator geometry. This paper presents how to measure the blocked force by using the micro-balance. The blocked force is defined as the force produced by the transducer under an applied voltage when the tip is constrained to zero motion. Also, a theoretical force by using the cantilever beam model is calculated under elastic domain. From the sample of 4 cm x 1 cm x 20 ㎛, the blocked force measured from the equipment is 20.3 at 8 VDC. By comparing it with the theoretical value, 24.9 , the blocked force measurement is acceptable. The force measurement is also investigated with different AC electric fields and the frequency.