| Mixed frequency ultrasound phased array | |
| Xiang Yong ; Huo Jian ; Shi Keren ; Chen Yifang | |
| 2010-05-10 ; 2010-05-10 | |
| 关键词 | Practical Theoretical or Mathematical/ acoustic signal processing ultrasonic arrays ultrasonic imaging ultrasonic materials testing ultrasonic measurement/ mixed phased array ultrasound testing nondestructive testing element excitation frequency constant frequency phased array mixed frequency phased array array sound distribution pressure intensity array focal area scanning area effective contrast resolution high intensity focused ultrasound ultrasound imaging diagnostics signal to noise ratio beam forming nondestructive evaluation/ A8170B Nondestructive testing: acoustic methods A4385G Measurement by acoustic techniques A4360 Acoustic signal processing B7820 Sonic and ultrasonic applications B6140 Signal processing and detection |
| 中文摘要 | A mixed frequency ultrasonic phased array (MPA) was developed to improve the focus, in which the element excitation frequencies are not all the same as in a normal constant frequency phased array. A theoretical model of the mixed frequency phased array based on the interference principle was used to simulate the array's sound distribution. The pressure intensity in the array focal area was enhanced and the scanning area having effective contrast resolution was enlarged. The system is especially useful for high intensity focused ultrasound (HIFU) with more powerful energy and ultrasound imaging diagnostics with improved signal to noise ratios, improved beam forming and more uniform imaging quality. |
| 语种 | 英语 ; 英语 |
| 出版者 | Editorial Board of J. of Tsinghua University ; China |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/23890]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Xiang Yong,Huo Jian,Shi Keren,et al. Mixed frequency ultrasound phased array[J],2010, 2010. |
| APA | Xiang Yong,Huo Jian,Shi Keren,&Chen Yifang.(2010).Mixed frequency ultrasound phased array.. |
| MLA | Xiang Yong,et al."Mixed frequency ultrasound phased array".(2010). |
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