JPH0139596B2 - - Google Patents
Info
- Publication number
- JPH0139596B2 JPH0139596B2 JP21405684A JP21405684A JPH0139596B2 JP H0139596 B2 JPH0139596 B2 JP H0139596B2 JP 21405684 A JP21405684 A JP 21405684A JP 21405684 A JP21405684 A JP 21405684A JP H0139596 B2 JPH0139596 B2 JP H0139596B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- acoustic
- ptc
- signal
- generator
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000006260 foam Substances 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Landscapes
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21405684A JPS60100196A (ja) | 1984-10-12 | 1984-10-12 | 音響発生器 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21405684A JPS60100196A (ja) | 1984-10-12 | 1984-10-12 | 音響発生器 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60100196A JPS60100196A (ja) | 1985-06-04 |
| JPH0139596B2 true JPH0139596B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1989-08-22 |
Family
ID=16649530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21405684A Granted JPS60100196A (ja) | 1984-10-12 | 1984-10-12 | 音響発生器 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60100196A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01146297U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1988-03-29 | 1989-10-09 |
-
1984
- 1984-10-12 JP JP21405684A patent/JPS60100196A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60100196A (ja) | 1985-06-04 |
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