ACOUSTIC DEVICE

To provide an acoustic device capable of increasing sound pressure in a low frequency region.SOLUTION: An acoustic device 1 includes a piezoelectric vibrator 2, a cylindrical member 3 having a first end 3a closed by the piezoelectric vibrator 2 and a second end 3b open, and a joining member 4 joinin...

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Bibliographische Detailangaben
Hauptverfasser:	TERANISHI KEISUKE, IJIRI HIROYUKI, KATO MIHO, MITSUI HIROKI, SAKAMOTO HIDEYA, OTA YOSHIO
Format:	Patent
Sprache:	eng ; jpn
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:	To provide an acoustic device capable of increasing sound pressure in a low frequency region.SOLUTION: An acoustic device 1 includes a piezoelectric vibrator 2, a cylindrical member 3 having a first end 3a closed by the piezoelectric vibrator 2 and a second end 3b open, and a joining member 4 joining the piezoelectric vibrator 2 and the first end 3a.SELECTED DRAWING: Figure 1 【課題】低周波領域の音圧を増大することができる音響装置を提供する。【解決手段】音響装置１は、圧電振動子２と、圧電振動子２により塞がれた第一端３ａと、開放された第二端３ｂと、を有している筒状部材３と、圧電振動子２と第一端３ａとを接合している接合部材４と、を備える。【選択図】図１