JPH0258839B2 - - Google Patents
Info
- Publication number
- JPH0258839B2 JPH0258839B2 JP3166981A JP3166981A JPH0258839B2 JP H0258839 B2 JPH0258839 B2 JP H0258839B2 JP 3166981 A JP3166981 A JP 3166981A JP 3166981 A JP3166981 A JP 3166981A JP H0258839 B2 JPH0258839 B2 JP H0258839B2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric sheet
- transducer
- piezoelectric
- acoustic impedance
- sound
- 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.)
- Expired
Links
- 239000011810 insulating material Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000000465 moulding Methods 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 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
- H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transducers For Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3166981A JPS57145497A (en) | 1981-03-05 | 1981-03-05 | Wave transmitter and receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3166981A JPS57145497A (en) | 1981-03-05 | 1981-03-05 | Wave transmitter and receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57145497A JPS57145497A (en) | 1982-09-08 |
| JPH0258839B2 true JPH0258839B2 (enrdf_load_html_response) | 1990-12-10 |
Family
ID=12337528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3166981A Granted JPS57145497A (en) | 1981-03-05 | 1981-03-05 | Wave transmitter and receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57145497A (enrdf_load_html_response) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60264200A (ja) * | 1984-06-13 | 1985-12-27 | Shimada Phys & Chem Ind Co Ltd | 超音波振動子 |
| JP2010256307A (ja) * | 2009-04-28 | 2010-11-11 | Tohoku Univ | 硬さ測定装置 |
-
1981
- 1981-03-05 JP JP3166981A patent/JPS57145497A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57145497A (en) | 1982-09-08 |
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