PIEZOELECTRIC BIMORPH

PURPOSE:To improve the mechanical strength of a piezoelectric bimorph and to increase the displacement due to deflection by bonding piezoelectric elements on both side surfaces of a thin intermediate electrode formed with thin condutive layers on both side surfaces of a flexible insulator. CONSTITUT...

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Bibliographic Details
Main Authors TANIGUCHI TSUTOMU, OOBA MASATOSHI, NOZAKI YUTAKA, SATOU RIYUUICHI
Format Patent
LanguageEnglish
Published 31.01.1984
Subjects
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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Summary:PURPOSE:To improve the mechanical strength of a piezoelectric bimorph and to increase the displacement due to deflection by bonding piezoelectric elements on both side surfaces of a thin intermediate electrode formed with thin condutive layers on both side surfaces of a flexible insulator. CONSTITUTION:Piezoelectric elements 1, 2 are bonded to a thin intermediate electrode 3 so that the polarizing axes are opposed. The electrode 3 is formed by forming thin conductive layers 9, 10 such as Ag or the like on both side surfaces of flexible sheet-shaped insulator 8. Conductive layers 6, 7 formed on one side surfaces of the elements 1, 2 are bonded by adhesive 11 such as modified acrylate adhesive on the layers 9, 10. Conductive layers 4, 5 are formed also on the outside surfaces of the elements 1, 2, the layer 4 and a thin film conductive layer 10 are connected to one electrode terminal of the power source 6, and a conductive layer 5 and a thin conductive layer are connected to the other electrode terminal of the power source 6.
Bibliography:Application Number: JP19820129298