| Project/Area Number |
25420419
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Measurement engineering
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| Research Institution | Tokai University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SAMATSU Takashi 東海大学, 基盤工学部, 教授 (60299667)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 光マイクロホン / 可聴音 / 超音波 / レーザー / 光ファイバセンサ / ハイレゾセンサ / レーザ / レーザー応用計測 / 音計測 / 光音相互作用 / 光回折 |
|---|
| Outline of Final Research Achievements |
Many types of microphone have been developed over the last 100 years. Although current microphones have high sensitivity, the basic principle, in which a diaphragm is used to detect sound waves, has been not changed and many restrictions come out in application. In this study, an optical wave microphone method with no diaphragm, which uses a laser beam to detect sounds without disturbing the sound field, is proposed and developed. Moreover, in addition to the laser beam sensor method, an optical fiber sensor system is also proposed and developed which can be used in air and under water. Finally all the contents including from measurement principle to hardware system are systematically summarized to offer a technical synthesis guide.
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