| Presentation | 2022-05-19 Development of Ultrasonic Phased Array using High-Intensity Transducers Takayuki Hoshi, Yoshiki Ooka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We developed a phased array that can drive 271 specially made ultrasonic transducers individually, that can emit more powerful airborne ultrasonic waves than commercial products. The ultrasonic sound pressure at the center of the focal point was measured when the focal length was set to 100 mm, and the sound pressure level of the 40 kHz component was confirmed to exceed 170 dB. This is about 3 dB greater than that of the commercial product. We also observed the effect of this difference on nonlinear acoustic phenomena. The acoustic radiation pressure, which is used for non-contact tactile stimulation, was measured as a force using an electronic scale. Additionally, the acoustic streaming generated by the acoustic beam was measured as wind velocity. This paper reports the results of these measurements. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | phased array / focused ultrasound / high-intensity ultrasound / acoustic radiation pressure / acoustic streaming |
| Paper # | US2022-2 |
| Date of Issue | 2022-05-12 (US) |
| Conference Information | |
| Committee | US |
|---|---|
| Conference Date | 2022/5/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Nonlinear acoustics, Ultrasonics, etc. |
| Chair | Yoshikazu Koike(Shibaura Inst. of Tech.) |
| Vice Chair | Hikaru Miura(Nihon Univ.) / Kentaro Nakamura(Tokyo Inst. of Tech.) |
| Secretary | Hikaru Miura(Tohoku Univ.) / Kentaro Nakamura(Chiba Univ.) |
| Assistant | Shin Yoshizawa(Tohoku Univ.) |
| Paper Information | |
| Registration To | 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) | Development of Ultrasonic Phased Array using High-Intensity Transducers |
| Sub Title (in English) | |
| Keyword(1) | phased array |
| Keyword(2) | focused ultrasound |
| Keyword(3) | high-intensity ultrasound |
| Keyword(4) | acoustic radiation pressure |
| Keyword(5) | acoustic streaming |
| 1st Author's Name | Takayuki Hoshi |
| 1st Author's Affiliation | Pixie Dust Technologies, Inc.(PxDT) |
| 2nd Author's Name | Yoshiki Ooka |
| 2nd Author's Affiliation | Pixie Dust Technologies, Inc.(PxDT) |
| Date | 2022-05-19 |
| Paper # | US2022-2 |
| Volume (vol) | vol.122 |
| Number (no) | US-36 |
| Page | pp.pp.6-7(US), |
| #Pages | 2 |
| Date of Issue | 2022-05-12 (US) |