Elektrisch aktivierbarer Antrieb aus polymer und Diaphragmapumpe mit diesem Antrieb

摘要

An electroactive polymer actuator, which has the capability of improving response speed and operation reliability of a device utilizing an electroactive effect, comprises a laminate formed by alternately placing a plurality of ring members (11) of an electroactive polymer material having different diameters and a plurality of ring electrodes (21,22) having different diameters such that each of the ring members (11,12) is positioned between inner and outer peripheral surfaces of adjacent ring electrodes (21,22), and a voltage applying unit for applying a voltage(s) between odd-numbered ring electrodes (21) and even-numbered ring electrodes (22) in the case of counting the ring electrodes (21,22) in order from an innermost ring electrode of the laminate, to thereby cause a deformation in the laminate (5). This actuator is preferably used as a diaphragm drive unit of a diaphragm pump.