Analysis of broad-band piezoelectric sandwich transducer with perforated structure
Pre-stressed piezoelectric sandwich transducers are used widely as sonic source for many low frequency ultrasonic applications, notably in the fields of macrosonics sand sonar. For certain applications a broader bandwidth is necessary. The sandwich transducer with perforated structure developed by u...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2015-07-01
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| Series: | Archives of Acoustics |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/3230 |
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| _version_ | 1849318503443595264 |
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| author | Chong-Mao LI Li-Qi HOU Chung-Fu YING |
| author_facet | Chong-Mao LI Li-Qi HOU Chung-Fu YING |
| author_sort | Chong-Mao LI |
| collection | DOAJ |
| description | Pre-stressed piezoelectric sandwich transducers are used widely as sonic source for many low frequency ultrasonic applications, notably in the fields of macrosonics sand sonar. For certain applications a broader bandwidth is necessary. The sandwich transducer with perforated structure developed by us is formed by drilling holes longitudinally in the radiating head, and has been shown experimentally to possess a bandwidth approximately double that of a conventional nonperforated transducer, while its electroacoustic efficiency remains almost undeteriorated [1].
In this paper a theoretical model for the broadband structure is proposed. The frequency characteristics of the input electrical admittance of the transducer and the input mechanical impedance of the radiating head loaded by water, are calculated both as functions of the relative cross-section a of the bored part and the relative depth of the holes β of the radiating head. Some theoretical results are compared with measured ones, the two fairly well agree. |
| format | Article |
| id | doaj-art-dec696bd69eb4d3cbd4ee43310123d8d |
| institution | Kabale University |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2015-07-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-dec696bd69eb4d3cbd4ee43310123d8d2025-08-20T03:50:48ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2015-07-0193Analysis of broad-band piezoelectric sandwich transducer with perforated structureChong-Mao LI0Li-Qi HOU1Chung-Fu YING2Institute of Acoustics, Academia SinicaInstitute of Acoustics, Academia SinicaInstitute of Acoustics, Academia SinicaPre-stressed piezoelectric sandwich transducers are used widely as sonic source for many low frequency ultrasonic applications, notably in the fields of macrosonics sand sonar. For certain applications a broader bandwidth is necessary. The sandwich transducer with perforated structure developed by us is formed by drilling holes longitudinally in the radiating head, and has been shown experimentally to possess a bandwidth approximately double that of a conventional nonperforated transducer, while its electroacoustic efficiency remains almost undeteriorated [1]. In this paper a theoretical model for the broadband structure is proposed. The frequency characteristics of the input electrical admittance of the transducer and the input mechanical impedance of the radiating head loaded by water, are calculated both as functions of the relative cross-section a of the bored part and the relative depth of the holes β of the radiating head. Some theoretical results are compared with measured ones, the two fairly well agree.https://acoustics.ippt.pan.pl/index.php/aa/article/view/3230 |
| spellingShingle | Chong-Mao LI Li-Qi HOU Chung-Fu YING Analysis of broad-band piezoelectric sandwich transducer with perforated structure Archives of Acoustics |
| title | Analysis of broad-band piezoelectric sandwich transducer with perforated structure |
| title_full | Analysis of broad-band piezoelectric sandwich transducer with perforated structure |
| title_fullStr | Analysis of broad-band piezoelectric sandwich transducer with perforated structure |
| title_full_unstemmed | Analysis of broad-band piezoelectric sandwich transducer with perforated structure |
| title_short | Analysis of broad-band piezoelectric sandwich transducer with perforated structure |
| title_sort | analysis of broad band piezoelectric sandwich transducer with perforated structure |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/3230 |
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