An elliptic friction drive element using an ICPF (ionic conducting polymer gel film) actuator

The ICPF (ionic conducting polymer gel film) actuator, which has advantages such as low driving voltage, high speed, and capability for underwater motion, was discovered in 1992. This paper presents a new actuator element using an ICPF which generates an elliptic motion, as used in ultrasonic motors, to drive objects by friction. A method of forming a pattern of ICPF on a membrane was developed for production of the element. The experimental elements effectively functioned as driving devices and successfully drove a rotary motor as an application. Experiments and modeling revealed the relation of the resultant elliptic motion to control signals and design parameters