Electroacoustic Transducer

A electroacoustic transducer includes a housing, a piezoelectric element, a partition wall, a first tube, and a second tube. The piezoelectric element is disposed in the housing and includes a porous film and a pair of electrodes that sandwich the porous film therebetween. The partition wall divides...

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Bibliographische Detailangaben
Hauptverfasser:	TSUCHIHASHI, Yu, MIYATA, Tomoya
Format:	Patent
Sprache:	eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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Beschreibung
Zusammenfassung:	A electroacoustic transducer includes a housing, a piezoelectric element, a partition wall, a first tube, and a second tube. The piezoelectric element is disposed in the housing and includes a porous film and a pair of electrodes that sandwich the porous film therebetween. The partition wall divides an inner space of the housing into a first space closer to one of the pair of electrodes, and a second space closer to another of the pair of electrodes. The first tube establishes communication between a sound wave emission opening that is open to an outer space of the housing and the first space. The second tube establishes communication between the sound wave emission opening and the second space.