JPS57140100A - Piezoelectric bimorph vibrator - Google Patents
Piezoelectric bimorph vibratorInfo
- Publication number
- JPS57140100A JPS57140100A JP2588681A JP2588681A JPS57140100A JP S57140100 A JPS57140100 A JP S57140100A JP 2588681 A JP2588681 A JP 2588681A JP 2588681 A JP2588681 A JP 2588681A JP S57140100 A JPS57140100 A JP S57140100A
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- vibrator
- projected
- piezoelectric
- semicircle
- 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.)
- Granted
Links
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
PURPOSE:To lower the limit of reproduction at low frequencies and to make the frequency characteristic flat, in assembling a piezoelectric speaker, by specifying the shape of a piezoelectric vibrator. CONSTITUTION:A semicircle piezoelectric plate 2 is sticked to a metallic plate 1 in which a rectangular shape is projected at a semicircle, and the rectangular part is fixed to, e.g., a vibration diaphragm frame 3 as a fixed side, and another end with wider side is taken as a diaphragm tip. The coupling point between a diaphragm 4 and an vibrator is taken as an auxiliary vibration part 5 projected to a straight line part of the diaphragm tip. Thus, the reproduced frequency characteristics can be made flat by this formation. Projections 6 and 7 projected partially longer than the part 5 are provided at the diaphragm tip of the vibrator, allowing to lower the lower limit of reproduction of low frequencies.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2588681A JPS5924598B2 (en) | 1981-02-23 | 1981-02-23 | piezoelectric bimorph vibrator |
US06/314,873 US4454386A (en) | 1980-10-29 | 1981-10-26 | Piezoelectric transducer for piezoelectric loud speaker |
DE3143027A DE3143027C2 (en) | 1980-10-29 | 1981-10-29 | Piezoelectric converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2588681A JPS5924598B2 (en) | 1981-02-23 | 1981-02-23 | piezoelectric bimorph vibrator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57140100A true JPS57140100A (en) | 1982-08-30 |
JPS5924598B2 JPS5924598B2 (en) | 1984-06-11 |
Family
ID=12178261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2588681A Expired JPS5924598B2 (en) | 1980-10-29 | 1981-02-23 | piezoelectric bimorph vibrator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5924598B2 (en) |
-
1981
- 1981-02-23 JP JP2588681A patent/JPS5924598B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5924598B2 (en) | 1984-06-11 |
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