JP7377077B2 - コンデンサーマイクロフォン - Google Patents
コンデンサーマイクロフォン Download PDFInfo
- Publication number
- JP7377077B2 JP7377077B2 JP2019210553A JP2019210553A JP7377077B2 JP 7377077 B2 JP7377077 B2 JP 7377077B2 JP 2019210553 A JP2019210553 A JP 2019210553A JP 2019210553 A JP2019210553 A JP 2019210553A JP 7377077 B2 JP7377077 B2 JP 7377077B2
- Authority
- JP
- Japan
- Prior art keywords
- fixed electrode
- diaphragm
- condenser microphone
- hole
- electret
- 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.)
- Active
Links
- 239000003990 capacitor Substances 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 10
- 238000002474 experimental method Methods 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 9
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- 238000002834 transmittance Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- 230000035945 sensitivity Effects 0.000 description 6
- 238000012795 verification Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000001364 causal effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Landscapes
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019210553A JP7377077B2 (ja) | 2019-11-21 | 2019-11-21 | コンデンサーマイクロフォン |
| JP2023098845A JP7524414B2 (ja) | 2019-11-21 | 2023-06-16 | コンデンサーマイクロフォンにおける自己ノイズの低減方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019210553A JP7377077B2 (ja) | 2019-11-21 | 2019-11-21 | コンデンサーマイクロフォン |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023098845A Division JP7524414B2 (ja) | 2019-11-21 | 2023-06-16 | コンデンサーマイクロフォンにおける自己ノイズの低減方法 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2021082993A JP2021082993A (ja) | 2021-05-27 |
| JP2021082993A5 JP2021082993A5 (https=) | 2022-10-27 |
| JP7377077B2 true JP7377077B2 (ja) | 2023-11-09 |
Family
ID=75966062
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019210553A Active JP7377077B2 (ja) | 2019-11-21 | 2019-11-21 | コンデンサーマイクロフォン |
| JP2023098845A Active JP7524414B2 (ja) | 2019-11-21 | 2023-06-16 | コンデンサーマイクロフォンにおける自己ノイズの低減方法 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023098845A Active JP7524414B2 (ja) | 2019-11-21 | 2023-06-16 | コンデンサーマイクロフォンにおける自己ノイズの低減方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (2) | JP7377077B2 (https=) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015507877A (ja) | 2012-01-05 | 2015-03-12 | エプコス アクチエンゲゼルシャフトＥｐｃｏｓ Ａｇ | 差動マイクロフォンおよび差動マイクロフォンの駆動方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52164521U (https=) * | 1976-06-07 | 1977-12-13 | ||
| JPS5323618A (en) * | 1976-08-17 | 1978-03-04 | Toshiba Corp | Electrostatic type transducer |
| JPS57193198A (en) * | 1981-05-22 | 1982-11-27 | Toshiba Corp | Electrostatic microphone |
| JP4125664B2 (ja) * | 2003-11-18 | 2008-07-30 | 株式会社オーディオテクニカ | コンデンサマイクロホンユニットおよびその製造方法 |
| JP5338825B2 (ja) * | 2011-02-23 | 2013-11-13 | オムロン株式会社 | 音響センサ及びマイクロフォン |
| WO2015131925A1 (en) * | 2014-03-03 | 2015-09-11 | Epcos Ag | Condenser microphone with non-circular membrane |
-
2019
- 2019-11-21 JP JP2019210553A patent/JP7377077B2/ja active Active
-
2023
- 2023-06-16 JP JP2023098845A patent/JP7524414B2/ja active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015507877A (ja) | 2012-01-05 | 2015-03-12 | エプコス アクチエンゲゼルシャフトＥｐｃｏｓ Ａｇ | 差動マイクロフォンおよび差動マイクロフォンの駆動方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021082993A (ja) | 2021-05-27 |
| JP7524414B2 (ja) | 2024-07-29 |
| JP2023113957A (ja) | 2023-08-16 |
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