| 沈国峰,余瑛,张鹤林,程春雷,汪灿华.红外热成像聚焦超声声场测量方法综述[J].声学技术,2019,38(1):1~4 |
| 红外热成像聚焦超声声场测量方法综述 |
| Research survey of focused ultrasound measurement using infrared imaging |
| 投稿时间：2018-01-12 修订日期：2018-03-04 |
| DOI：10.16300/j.cnki.1000-3630.2019.01.001 |
| 中文关键词: 聚焦超声 声场测量 红外热成像 |
| 英文关键词: focused ultrasound sound field measurement infrared imaging |
| 基金项目:本项目受国家科技部2017重点研发计划项目（2017YFC0108900）；国家自然科学基金面上项目（11774231）；江西省自然科学基金（20151BAB202014）；国家重大科研仪器研制项目（81727806）；2017上海市科技支撑计划项目（17441906400）；2015上海市科技支撑计划项目（15441900700）的支持 |
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| 中文摘要: |
| 基于红外热成像技术对聚焦超声声场进行快速、定量测量的方法具有扫描速度快、空间分辨率高、适用频率范围广等优点。但是由于红外线的穿透能力限制，在红外摄像仪和超声吸收体之间需要一个空气层，因此使得超声吸收体内部声场较为复杂，目前已有三种模型对此进行描述，且都得到了相应的实验验证。本文通过分析基于三种模型的超声吸收体内部声场分布和声强估计方法，对其进行了较为详细的描述。为进一步研究该项技术提供了理论参考依据。 |
| 英文摘要: |
| The method of measuring focused ultrasonic field based on infrared thermal imaging technique has the advantages of high scanning speed, high spatial resolution and wide frequency range. But, due to the limitation of infrared penetration ability, an air layer is needed between infrared camera and ultrasonic absorbers, which makes the internal sound field of ultrasonic absorber more complex. Currently there are three models to describe the internal sound field, and the corresponding experimental verification is obtained. In this paper, the internal sound field distribution and the sound intensity estimation method of the ultrasonic absorber based on the three models are analyzed, which provides a theoretical reference for further research on this technology. |
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