| Presentation | 2002/11/22 Accuracy Improvement in Measurement of Time of Flight of Sound Using Pair of Loudspeaker-microphone Hidetaka KAN, Koichi MIZUTANI, Keinosuke NAGAI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A method for accuracy improvement in measurement of time of flight of sound using pair of. loudspeaker-microphone is described. In this paper, the time of flight of the sound between the speaker and microphone is measured by the correlation of transmitted and received signals. Therefore, nondestructive measurement of the sound velocity and the air temperature of the medium can be realized. However, impulse response of the system is added in the received signal, and the waveform distortion is generated. Error has finally been produced in the correlation result. Waveform distortion was able to be reduced by the deconvolution of the received signal using the impulse response. Therefore, the error also decreased in correlation result of using in order to measure the time of flight of the sound. The advantage of this method is that it can be used for acoustical signal processing, measurement and imaging. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | sound / time of flight / correlation / impulse response / deconvolution / temperature measurement |
| Paper # | SAW2002-73 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 2002/11/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Accuracy Improvement in Measurement of Time of Flight of Sound Using Pair of Loudspeaker-microphone |
| Sub Title (in English) | |
| Keyword(1) | sound |
| Keyword(2) | time of flight |
| Keyword(3) | correlation |
| Keyword(4) | impulse response |
| Keyword(5) | deconvolution |
| Keyword(6) | temperature measurement |
| 1st Author's Name | Hidetaka KAN |
| 1st Author's Affiliation | Institute of Engineering Mechanics and Systems, University of Tsukuba() |
| 2nd Author's Name | Koichi MIZUTANI |
| 2nd Author's Affiliation | Institute of Engineering Mechanics and Systems, University of Tsukuba |
| 3rd Author's Name | Keinosuke NAGAI |
| 3rd Author's Affiliation | Institute of Engineering Mechanics and Systems, University of Tsukuba |
| Date | 2002/11/22 |
| Paper # | SAW2002-73 |
| Volume (vol) | vol.102 |
| Number (no) | 486 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |