ELECTROMECHANICAL TRANSDUCER DEVICE

摘要

#CMT# #/CMT# The transducer device (2) has layered composite (4) that is arranged between electrodes (6,8). The layered composite comprises electro-active layers (10,12). An electret material (14) having predetermined electrical charge is provided between the electro-active layers. An operating point of electro-mechanical transducer device is adjusted depending on the electric charge of electret material. #CMT# : #/CMT# Independent claims are included for the following: (1) electromechanical transducer system; and (2) method of producing electromechanical transducer device. #CMT#USE : #/CMT# Electromechanical transducer device of electromechanical transducer system, for use in actuator device and generator device (all claimed). #CMT#ADVANTAGE : #/CMT# The transducer device can be operated economically and efficiently. The transducer device can be produced easily. The production rate is increased. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows the schematic view of the electromechanical transducer device. 2 : Transducer unit 4 : Layered composite 6,8 : Electrodes 10,12 : Electro-active layers 14 : Electret material #CMT#POLYMERS : #/CMT# The electro-active layer is made of elastomer selected from group consisting of polyurethane, silicone and/or acrylate. The electret material is made of material selected from group comprising polycarbonate perfluorinated or partially fluorinated polymers and co-polymers, PTFE, fluorinated ethylene propylene, perfluoroalkoxyethylene, polyester, polyethylene terephthalate, polyethylene naphthalate, polyimide, polyetherimide, polyether, polymethyl (meth) acrylate, cyclo-olefin polymers, cyclic olefin copolymers and/or polyolefins.