JPS6424700A - Piezoelectric acoustic transducer - Google Patents
Piezoelectric acoustic transducerInfo
- 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
Links
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.
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)
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 |
-
1987
- 1987-07-21 JP JP18198887A patent/JPS6424700A/en active Pending
Cited By (3)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS56161799A (en) | Ultrasonic wave probe | |
EP0142215A3 (en) | Ultrasound transducer with improved vibrational modes | |
US4845776A (en) | Piezoelectric transducer and transformer circuit | |
ES2010038A6 (en) | An acoustic emission transducer and an electrical oscillator | |
JPS6424700A (en) | Piezoelectric acoustic transducer | |
JPS5597799A (en) | Electro-mechanical transducer | |
GB1370164A (en) | Piezoelectric transducer | |
JPS56160123A (en) | Elastic surface wave device | |
JPS5535558A (en) | Sounding material | |
GB899474A (en) | Improvements in or relating to electroacoustic transducers | |
JPS6424699A (en) | Piezoelectric acoustic transducer | |
JPH02116300A (en) | Ultrasonic ceramic microphone | |
JPH0241999Y2 (en) | ||
JPS5838717Y2 (en) | Sealed button type piezoelectric sounding element | |
JPS59218098A (en) | Ultrasonic wave ceramic microphone | |
JPS5643899A (en) | Electroacoustic converter using piezoelectric film honeycomb structure | |
JPS5772497A (en) | Piezoelectric speaker | |
JPS6424698A (en) | Piezoelectric acoustic transducer | |
JPS5797799A (en) | Ultrasonic wave transmitter and receiver | |
KR930006685Y1 (en) | Piezo-electric buzzer | |
JPH0514533Y2 (en) | ||
JPS5725795A (en) | Sound generator and sound receiver | |
JPS5497457A (en) | Alarming device of watch | |
JPS57154999A (en) | Plate speaker | |
SU849554A1 (en) | Piezoelectric transducer |