| Presentation | 1995/5/26 Acoustical Characteristics of Glass Wool Materials in Hyperbaric Helium-Air Yasuhito Kawanishi, Masahiro Saio, Takayoshi Nakai, Hisayoshi Suzuki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper describes measurements of specific acoustic impedances and propagation constants of glass wool materials in hyperbaric helium-air. Measurement of specific acoustic impedances and propagation constant of two kinds of glass wool were carried out in hyperbaric He-Air using a method according to "Transfer Function Method". It is found that the real part of specific acoustic impedances of glass wools approaches to approximately 1 and the imaginary part approaches to 0 when the pressure approaches to 30atm. The phase delay and the attenuation constant are small when the pressure is high and attenuation constant is related to only density of the environment gas. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Transfer Function Method / glass wool / specific acoustic impedance / propagation constant / hyperbaric gas mixture / helium-air |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 1995/5/26(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Acoustical Characteristics of Glass Wool Materials in Hyperbaric Helium-Air |
| Sub Title (in English) | |
| Keyword(1) | Transfer Function Method |
| Keyword(2) | glass wool |
| Keyword(3) | specific acoustic impedance |
| Keyword(4) | propagation constant |
| Keyword(5) | hyperbaric gas mixture |
| Keyword(6) | helium-air |
| 1st Author's Name | Yasuhito Kawanishi |
| 1st Author's Affiliation | Department of Electric and Electronics, Faculty of Engineering, Shizuoka University() |
| 2nd Author's Name | Masahiro Saio |
| 2nd Author's Affiliation | Department of Electric and Electronics, Faculty of Engineering, Shizuoka University |
| 3rd Author's Name | Takayoshi Nakai |
| 3rd Author's Affiliation | Department of Electric and Electronics, Faculty of Engineering, Shizuoka University |
| 4th Author's Name | Hisayoshi Suzuki |
| 4th Author's Affiliation | Department of Electric and Electronics, Faculty of Engineering, Shizuoka University |
| Date | 1995/5/26 |
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| Volume (vol) | vol.95 |
| Number (no) | 70 |
| Page | pp.pp.- |
| #Pages | 8 |
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