書誌事項
- タイトル別名
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- Sound Detection by Laser Microphone Using Self-coupling Effect of Semiconductor Laser
- ハンドウタイ レーザ ノ ジコ ケツゴウ コウカ オ リヨウ シタ レーザマイクロホン ニ ヨル オンパ ケンシュツ
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抄録
Demand for inexpensive and wide band microphone for machine noise in factory and power station is increasing. However, frequency response is limited by diaphragm in conventional microphone. In this paper, a laser microphone based on self-coupling effect of the semiconductor laser is proposed. The laser microphone has a wide and flat frequency response. The features of the laser microphone do not need optical adjustment with simple optical system and not need post-processing by digital signal processing. The laser microphone can detect a sound wave and a human voice. This signal voltage is proportional to sound pressure and flat in frequency response in audible sound. This microphone has a omni-directivity in vertical direction.
収録刊行物
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- 電気学会論文誌C(電子・情報・システム部門誌)
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電気学会論文誌C(電子・情報・システム部門誌) 136 (7), 1021-1026, 2016
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390001204608859648
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- NII論文ID
- 130005160720
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- NII書誌ID
- AN10065950
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- ISSN
- 13488155
- 03854221
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- NDL書誌ID
- 027543354
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可