JP6638470B2 - マイクロホンの感度測定装置 - Google Patents
マイクロホンの感度測定装置 Download PDFInfo
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- JP6638470B2 JP6638470B2 JP2016037654A JP2016037654A JP6638470B2 JP 6638470 B2 JP6638470 B2 JP 6638470B2 JP 2016037654 A JP2016037654 A JP 2016037654A JP 2016037654 A JP2016037654 A JP 2016037654A JP 6638470 B2 JP6638470 B2 JP 6638470B2
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- 230000035945 sensitivity Effects 0.000 title claims description 27
- 238000005259 measurement Methods 0.000 title claims 2
- 238000012360 testing method Methods 0.000 claims description 23
- 238000005192 partition Methods 0.000 claims description 10
- 238000012790 confirmation Methods 0.000 description 21
- 238000003825 pressing Methods 0.000 description 7
- 238000007689 inspection Methods 0.000 description 6
- 238000011056 performance test Methods 0.000 description 6
- 230000000994 depressogenic effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Description
2 無響箱
21 天板
22 仕切り板
23 吸音壁
24 密閉空間
25 開口
3 音源装置
4 測定装置
5 固定装置
6 スピーカ
7 マイクロホン
71 マイク部
72 PTTボタン
S1〜S3 第1信号〜第3信号
T テスト音
Claims (2)
- 天板、前記天板に対向して配置された仕切り板及び前記天板の端部と前記仕切り板の端部とを繋ぐ吸音壁により囲まれた密閉空間と、前記仕切り板に設けられ前記密閉空間内で所定のテスト音を発生させるためのスピーカと、前記スピーカに対向して前記天板に設けられ外側からマイクロホンのマイク部が嵌合される開口と、を備えた無響箱と、
前記スピーカに接続され、該スピーカに前記テスト音を発生させるための第1信号を出力する音源装置と、
前記マイクロホンに接続され、該マイクロホンが前記テスト音を受音しているときに前記マイクロホンから出力される第2信号の電圧レベルを測定する測定装置と、
を備え、
前記マイクロホンは、PTT(プッシュ・トゥ・トーク)ボタンを有し、前記音源装置にも接続され、
前記音源装置は、前記PTTボタンが押し下げられたときに前記マイクロホンから出力される第3信号をトリガーとして、前記第1信号を出力することを特徴とするマイクロホンの感度測定装置。 - 前記無響箱に、前記マイクロホンを固定する固定装置を更に備えたことを特徴とする請求項1に記載のマイクロホンの感度測定装置。
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JP2016037654A JP6638470B2 (ja) | 2016-02-29 | 2016-02-29 | マイクロホンの感度測定装置 |
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JP2016037654A JP6638470B2 (ja) | 2016-02-29 | 2016-02-29 | マイクロホンの感度測定装置 |
Publications (2)
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JP2017157948A JP2017157948A (ja) | 2017-09-07 |
JP6638470B2 true JP6638470B2 (ja) | 2020-01-29 |
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JP2016037654A Active JP6638470B2 (ja) | 2016-02-29 | 2016-02-29 | マイクロホンの感度測定装置 |
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JP (1) | JP6638470B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110631694A (zh) * | 2019-10-22 | 2019-12-31 | 宝科机械股份有限公司 | 一种托辊噪音检测室 |
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