A Study on Capacitive Micromachined Ultrasonic Transducer Periodic Sparse Array
Capacitive micromachined ultrasonic transducer (CMUT) is an ultrasonic transducer based on the microelectromechanical system (MEMS). CMUT elements are easily made into a high-density array, which will increase the hardware complexity. In order to reduce the number of active channels, this paper stud...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/12/6/684 |
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| author | Tian Zhang Wendong Zhang Xingling Shao Yuhua Yang Zhihao Wang Yang Wu Yu Pei |
| author_facet | Tian Zhang Wendong Zhang Xingling Shao Yuhua Yang Zhihao Wang Yang Wu Yu Pei |
| author_sort | Tian Zhang |
| collection | DOAJ |
| description | Capacitive micromachined ultrasonic transducer (CMUT) is an ultrasonic transducer based on the microelectromechanical system (MEMS). CMUT elements are easily made into a high-density array, which will increase the hardware complexity. In order to reduce the number of active channels, this paper studies the grating lobes generated by CMUT periodic sparse array (PSA) pairs. Through the design of active element positions in the transmitting and receiving processes, the simulation results of effective aperture and beam patterns show that the common grating lobes (CGLs) generated by the transmit and receive array are eliminated. On the basis of point targets imaging, a CMUT linear array with 256 elements is used to carry out the PSA pairs experiment. Under the same sparse factor (SF), the optimal sparse array configuration can be selected to reduce the imaging artifacts. This conclusion is of great significance for the application of CMUT in three-dimensional ultrasound imaging. |
| first_indexed | 2024-03-10T10:29:11Z |
| format | Article |
| id | doaj.art-544eefbcaa634f2b808744078a700849 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-10T10:29:11Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-544eefbcaa634f2b808744078a7008492023-11-21T23:44:30ZengMDPI AGMicromachines2072-666X2021-06-0112668410.3390/mi12060684A Study on Capacitive Micromachined Ultrasonic Transducer Periodic Sparse ArrayTian Zhang0Wendong Zhang1Xingling Shao2Yuhua Yang3Zhihao Wang4Yang Wu5Yu Pei6State Key Laboratory of Dynamic Testing Technology, North University of China, Taiyuan 030051, ChinaState Key Laboratory of Dynamic Testing Technology, North University of China, Taiyuan 030051, ChinaState Key Laboratory of Dynamic Testing Technology, North University of China, Taiyuan 030051, ChinaState Key Laboratory of Dynamic Testing Technology, North University of China, Taiyuan 030051, ChinaState Key Laboratory of Dynamic Testing Technology, North University of China, Taiyuan 030051, ChinaState Key Laboratory of Dynamic Testing Technology, North University of China, Taiyuan 030051, ChinaState Key Laboratory of Dynamic Testing Technology, North University of China, Taiyuan 030051, ChinaCapacitive micromachined ultrasonic transducer (CMUT) is an ultrasonic transducer based on the microelectromechanical system (MEMS). CMUT elements are easily made into a high-density array, which will increase the hardware complexity. In order to reduce the number of active channels, this paper studies the grating lobes generated by CMUT periodic sparse array (PSA) pairs. Through the design of active element positions in the transmitting and receiving processes, the simulation results of effective aperture and beam patterns show that the common grating lobes (CGLs) generated by the transmit and receive array are eliminated. On the basis of point targets imaging, a CMUT linear array with 256 elements is used to carry out the PSA pairs experiment. Under the same sparse factor (SF), the optimal sparse array configuration can be selected to reduce the imaging artifacts. This conclusion is of great significance for the application of CMUT in three-dimensional ultrasound imaging.https://www.mdpi.com/2072-666X/12/6/684CMUTsparse arrayultrasound imagingMEMS |
| spellingShingle | Tian Zhang Wendong Zhang Xingling Shao Yuhua Yang Zhihao Wang Yang Wu Yu Pei A Study on Capacitive Micromachined Ultrasonic Transducer Periodic Sparse Array Micromachines CMUT sparse array ultrasound imaging MEMS |
| title | A Study on Capacitive Micromachined Ultrasonic Transducer Periodic Sparse Array |
| title_full | A Study on Capacitive Micromachined Ultrasonic Transducer Periodic Sparse Array |
| title_fullStr | A Study on Capacitive Micromachined Ultrasonic Transducer Periodic Sparse Array |
| title_full_unstemmed | A Study on Capacitive Micromachined Ultrasonic Transducer Periodic Sparse Array |
| title_short | A Study on Capacitive Micromachined Ultrasonic Transducer Periodic Sparse Array |
| title_sort | study on capacitive micromachined ultrasonic transducer periodic sparse array |
| topic | CMUT sparse array ultrasound imaging MEMS |
| url | https://www.mdpi.com/2072-666X/12/6/684 |
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