2013 Fiscal Year Final Research Report
3D scan for discharge sound distribution using optical wave microphone
| Project/Area Number |
24760319
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Measurement engineering
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| Research Institution | Kumamoto University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 放電プラズマ / 超音波 |
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| Research Abstract |
Multi-channel optical wave microphone was constructed with a laser, optical fibers, collimator lens, optical divider, and optical switch. We developed 4 channel optical wave microphone system in this line of research. The characteristics of the multi-channel optical wave microphone system was evaluated and the calibration for the optical outputs among 4 channels was carried out.
Distribution of discharge sound which was emitted from surface discharge device was able to be measured with this system. The distribution strongly depended on the frequency of the high voltage source that applies to the electrode of the discharge device. It was found that discharge sound could be detected rather far position from the device.
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[Journal Article] Application of optical wave microphone to measurement of sound field emitted from parametric speaker2013
Author(s)
Samatsu, T., Sonoda, Y., Ide, R., Ikegami, T., Mitsugi, F., Nakamiya, T.
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Journal Title
ICIC Express Letters
Volume: 7(3A)
Pages: 699-704
Peer Reviewed
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