| Presentation | 2020-01-22 [Poster Presentation] Evaluation of particle distribution using resonance flexural vibration modes of a circular disc Daiko Sakata, Masaya Saeki, Takashi Misaki, Daisuke Koyama, Mami Matsukawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Sand and small stones moving on riverbeds cause topographical changes such as local lowing and scouring. Measurement of the size distributions of bed load is important to prevent river disasters, and robust and simple particle sizer without electric power supply is required. In this report, a passive piezoelectric sensor for the measurement of particle size distribution was investigated. The sensor consists of a stainless-steel circular plate and an annular piezoelectric transducer. Naturally-shaped stone particles were employed as simulated bed loads. When the particles hit the surface of the sensor, the ultrasound flexural vibration was excited on the circular plate of the sensor and the electric power was generated through the piezoelectric effect. In the case that the sequential impacts happened with several particles, the output signals were overlapped temporally, and the particle size distribution was predicted by the time-frequency analysis. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | particle-size distribution measurement / piezoelectric sensor / ultrasound flexural vibration / spectrogram |
| Paper # | US2019-80,EA2019-93 |
| Date of Issue | 2020-01-15 (US, EA) |
| Conference Information | |
| Committee | EA / US |
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| Conference Date | 2020/1/22(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Doshisha Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonics, and Related Topics |
| Chair | Kenichi Furuya(Oita Univ.) / Jun Kondo(Shizuoka Univ.) |
| Vice Chair | Suehiro Shimauchi(Kanazawa Inst. of Tech.) / Shigeto Takeoka(Shizuoka Inst. of Science and Tech.) / Shinichi Takeuchi(Toin Univ. of Yokohama) / Hikaru Miura(Nihon Univ.) |
| Secretary | Suehiro Shimauchi(NHK) / Shigeto Takeoka(Univ. of Tokyo) / Shinichi Takeuchi(Kanagawa Univ.) / Hikaru Miura(Doshisha Univ.) |
| Assistant | Keisuke Imoto(Ritsumeikan Univ.) / Daisuke Morikawa(Toyama Pref Univ.) / Mototaka Arakawa(Tohoku Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Engineering Acoustics / Technical Committee on Ultrasonics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Evaluation of particle distribution using resonance flexural vibration modes of a circular disc |
| Sub Title (in English) | |
| Keyword(1) | particle-size distribution measurement |
| Keyword(2) | piezoelectric sensor |
| Keyword(3) | ultrasound flexural vibration |
| Keyword(4) | spectrogram |
| 1st Author's Name | Daiko Sakata |
| 1st Author's Affiliation | Doshisha University(Doshisha Univ.) |
| 2nd Author's Name | Masaya Saeki |
| 2nd Author's Affiliation | Doshisha University(Doshisha Univ.) |
| 3rd Author's Name | Takashi Misaki |
| 3rd Author's Affiliation | Doshisha University(Doshisha Univ.) |
| 4th Author's Name | Daisuke Koyama |
| 4th Author's Affiliation | Doshisha University(Doshisha Univ.) |
| 5th Author's Name | Mami Matsukawa |
| 5th Author's Affiliation | Doshisha University(Doshisha Univ.) |
| Date | 2020-01-22 |
| Paper # | US2019-80,EA2019-93 |
| Volume (vol) | vol.119 |
| Number (no) | US-374,EA-375 |
| Page | pp.pp.57-62(US), pp.57-62(EA), |
| #Pages | 6 |
| Date of Issue | 2020-01-15 (US, EA) |