JPS6424700A - Piezoelectric acoustic transducer - Google Patents

Piezoelectric acoustic transducer

Info

Publication number
JPS6424700A
JPS6424700A JP18198887A JP18198887A JPS6424700A JP S6424700 A JPS6424700 A JP S6424700A JP 18198887 A JP18198887 A JP 18198887A JP 18198887 A JP18198887 A JP 18198887A JP S6424700 A JPS6424700 A JP S6424700A
Authority
JP
Japan
Prior art keywords
diaphragm
acoustic transducer
piezoelectric acoustic
conductivity
piezoelectric element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP18198887A
Other languages
Japanese (ja)
Inventor
Tadashi Kitamura
Mitsugi Takagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Chemi Con Corp
Original Assignee
Nippon Chemi Con Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Chemi Con Corp filed Critical Nippon Chemi Con Corp
Priority to JP18198887A priority Critical patent/JPS6424700A/en
Publication of JPS6424700A publication Critical patent/JPS6424700A/en
Pending legal-status Critical Current

Links

Landscapes

  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

PURPOSE:To obtain flat sound pressure frequency characteristics by adhering plural diaphragm materials with different elasticity to form a diaphragm. CONSTITUTION:A diaphragm material 14A having conductivity is adhered with a diaphragm material 14B having conductivity on its surface at least with different elasticity from that of the material 14A and both are connected electrically to form a diaphragm 14, and a piezoelectric element 6 is mounted on the diaphragm material 14A and one terminal (lead wire 20B) of the piezoelectric element 6 is provided to the diaphragm material 14B. Thus, the vibration modes of the materials 14A, 14B are combined to realize the flat sound pressure frequency characteristics.
JP18198887A 1987-07-21 1987-07-21 Piezoelectric acoustic transducer Pending JPS6424700A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18198887A JPS6424700A (en) 1987-07-21 1987-07-21 Piezoelectric acoustic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18198887A JPS6424700A (en) 1987-07-21 1987-07-21 Piezoelectric acoustic transducer

Publications (1)

Publication Number Publication Date
JPS6424700A true JPS6424700A (en) 1989-01-26

Family

ID=16110361

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18198887A Pending JPS6424700A (en) 1987-07-21 1987-07-21 Piezoelectric acoustic transducer

Country Status (1)

Country Link
JP (1) JPS6424700A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007219542A (en) * 2003-04-30 2007-08-30 Coding Technologies Ab New type processing and adaptive type time signal transmission method based on complex index modulation filter bank
JP2008532370A (en) * 2005-02-24 2008-08-14 エプコス アクチエンゲゼルシャフト Microphone diaphragm and microphone having a microphone diaphragm
JP2013162141A (en) * 2012-02-01 2013-08-19 Murata Mfg Co Ltd Piezoelectric sounder device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007219542A (en) * 2003-04-30 2007-08-30 Coding Technologies Ab New type processing and adaptive type time signal transmission method based on complex index modulation filter bank
JP2008532370A (en) * 2005-02-24 2008-08-14 エプコス アクチエンゲゼルシャフト Microphone diaphragm and microphone having a microphone diaphragm
JP2013162141A (en) * 2012-02-01 2013-08-19 Murata Mfg Co Ltd Piezoelectric sounder device

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