JPS6281200A - Ultrasonic ceramic microphone - Google Patents
Ultrasonic ceramic microphoneInfo
- Publication number
- JPS6281200A JPS6281200A JP22069685A JP22069685A JPS6281200A JP S6281200 A JPS6281200 A JP S6281200A JP 22069685 A JP22069685 A JP 22069685A JP 22069685 A JP22069685 A JP 22069685A JP S6281200 A JPS6281200 A JP S6281200A
- Authority
- JP
- Japan
- Prior art keywords
- diaphram
- supporter
- resonator
- vibrating
- plane
- 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
- 239000000919 ceramic Substances 0.000 title abstract 4
- 238000010030 laminating Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 230000002093 peripheral Effects 0.000 abstract 2
- VHOQXEIFYTTXJU-UHFFFAOYSA-N 2-methylbuta-1,3-diene;2-methylprop-1-ene Chemical compound CC(C)=C.CC(=C)C=C VHOQXEIFYTTXJU-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229920005549 butyl rubber Polymers 0.000 abstract 1
- 229920002379 silicone rubber Polymers 0.000 abstract 1
- 239000004945 silicone rubber Substances 0.000 abstract 1
Abstract
PURPOSE: To simplify an assembly work and to drastically cut down the influence of an external impulse on a vibrating part by constituting the titled microphone by a supporter consisting of an elastic material and a bimorph resonator produced by laminating a piezoelectric ceramic resonator on a diaphram.
CONSTITUTION: For an annular flange part 8a at the peripheral end and the diaphram 8 comprising a vibrating plane 8b of uniform plane, a metallic aluminum or a ceramic alumina is used. The bimorph resonator is constituted by laminating the piezoelectric ceramic resonator 1 on the vibrating plane 8b. The thickness of the flange part 8a provided at the periphery of the diaphram 8 is made 1.5 times or above the diaphram 8's thickness to minimize the characteristic-variation when receiving the external pressure. A supporter 9 consists of an elastic material such as silicone rubber or butyl rubber, etc., and has a bottom-forming part 9a. At the opening end of the supporter 9, a horn-shaped conical part 9b is formed, and a groove part 9c is provided in its peripheral side to make its mounting to an equipment easy. Also, in the inner-side of the supporter 9, a holding part to hold the periphery of the diaphram 8 is formed.
COPYRIGHT: (C)1987,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22069685A JPS6281200A (en) | 1985-10-03 | 1985-10-03 | Ultrasonic ceramic microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22069685A JPS6281200A (en) | 1985-10-03 | 1985-10-03 | Ultrasonic ceramic microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6281200A true JPS6281200A (en) | 1987-04-14 |
Family
ID=16755057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22069685A Pending JPS6281200A (en) | 1985-10-03 | 1985-10-03 | Ultrasonic ceramic microphone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6281200A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6708387B2 (en) * | 2001-05-15 | 2004-03-23 | Citizen Electronics Co., Ltd. | Method for manufacturing condenser microphones |
| JP7139545B1 (en) * | 2021-09-01 | 2022-09-20 | サンコール株式会社 | ultrasonic transducer |
-
1985
- 1985-10-03 JP JP22069685A patent/JPS6281200A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6708387B2 (en) * | 2001-05-15 | 2004-03-23 | Citizen Electronics Co., Ltd. | Method for manufacturing condenser microphones |
| JP7139545B1 (en) * | 2021-09-01 | 2022-09-20 | サンコール株式会社 | ultrasonic transducer |
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