A high bandwidth transducer optimized for harmonic imaging

被引：0
|
作者：
Hossack, JA [1 ]
Mauchamp, P [1 ]
Ratsimandresy, L [1 ]
机构：
[1] Univ Virginia, Dept Biomed Engn, Charlottesville, VA 22908 USA
来源：
2000 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS, VOLS 1 AND 2 | 2000年
关键词：
D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Transducer bandwidth rarely limits perceived spatial resolution in conventional medical ultrasonic array based imaging. However, the rapid adoption of harmonic imaging modes in the last three years has resulted in a situation where limited transducer bandwidth has measurable impact on image resolution. In this paper, a new method is described for achieving high bandwidth at the fundamental transmitted frequency and simultaneously achieving high bandwidth at the harmonic frequency during the receive operation. This method is based on using a dual layer transducer system in which the effective polarity of the two layers is switched between transmit and receive.
引用
收藏
页码：1021 / 1024
页数：4
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