| Presentation | 2023-01-25 Experimental verification of compact airborne ultrasound emitter using annular piezoelectric ceramics Chiharu Asano, Kyosuke Shimizu, Osumi Ayumu, Ito Youichi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have studied scanning elastic wave source technique using Airborne Ultrasound Phased Array (AUPA) as one of non-contact non-destructive testing methods for solid materials. Side lobe and grating lobe (GL) are emitted from AUPA in addition to the main lobe. Artifacts caused by GL occur in testing results, when the AUPA is applied to non-destructive testing. Therefore, it is necessary to suppress the occurrence of GL to improve artifacts. GL occurs when the distance between the ultrasound emitters that build up the AUPA is longer than the sound wavelength. In this report, we built a small airborne ultrasound emitter by combining ring-shaped piezoelectric ceramics and a stainless-steel film. And We also verified its characteristics. As a result, we were able to irradiate sound waves with high sound pressure at the same frequency as the conventional emitter. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | High-intensity aerial ultrasonic waves / Ultrasonic emitter / Annular piezoelectric ceramics / Phased array |
| Paper # | US2022-72 |
| Date of Issue | 2023-01-18 (US) |
| Conference Information | |
| Committee | US |
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| Conference Date | 2023/1/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | High-intensity ultrasound, Ultrasonics, etc. |
| Chair | Kentaro Nakamura(Tokyo Inst. of Tech.) |
| Vice Chair | Yoshikazu Koike(Shibaura Inst. of Tech.) / Yasuaki Watanabe(Tokyo Metropolitan Univ.) |
| Secretary | Yoshikazu Koike(Tohoku Univ.) / Yasuaki Watanabe(Chiba Univ.) |
| Assistant | Kan Okubo(Tokyo Metropolitan 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) | Experimental verification of compact airborne ultrasound emitter using annular piezoelectric ceramics |
| Sub Title (in English) | |
| Keyword(1) | High-intensity aerial ultrasonic waves |
| Keyword(2) | Ultrasonic emitter |
| Keyword(3) | Annular piezoelectric ceramics |
| Keyword(4) | Phased array |
| 1st Author's Name | Chiharu Asano |
| 1st Author's Affiliation | Nihon University(Nihon Univ.) |
| 2nd Author's Name | Kyosuke Shimizu |
| 2nd Author's Affiliation | Nihon University(Nihon Univ.) |
| 3rd Author's Name | Osumi Ayumu |
| 3rd Author's Affiliation | Nihon University(Nihon Univ.) |
| 4th Author's Name | Ito Youichi |
| 4th Author's Affiliation | Nihon University(Nihon Univ.) |
| Date | 2023-01-25 |
| Paper # | US2022-72 |
| Volume (vol) | vol.122 |
| Number (no) | US-358 |
| Page | pp.pp.7-11(US), |
| #Pages | 5 |
| Date of Issue | 2023-01-18 (US) |