发明名称 |
Microfabricated ultrasonic transducers with bias polarity beam profile control and method of operating the same |
摘要 |
A capacitive microfabricated ultrasonic transducer with control of elevation phase through alternating bias polarity is disclosed. Such control of elevation phase results in simple ultrasonic probes with excellent slice thickness attributes. Furthermore, tight spatial variation of phase results in an effective way to achieve transmit aperture and apodization control. Further still, such capacitive microfabricated ultrasonic transducers can achieve elevation focus without the need of a lossy mechanical lens.
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申请公布号 |
US2004160144(A1) |
申请公布日期 |
2004.08.19 |
申请号 |
US20030367106 |
申请日期 |
2003.02.14 |
申请人 |
DAFT CHRISTOPHER M. W.;WAGNER PAUL A.;LADABAUM IGAL |
发明人 |
DAFT CHRISTOPHER M. W.;WAGNER PAUL A.;LADABAUM IGAL |
分类号 |
B06B1/02;G01S15/89;G10K11/34;(IPC1-7):H04R19/00;H02N2/00 |
主分类号 |
B06B1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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