The paper introduces the mechanisms of photoacoustic imaging , reports the representative methods of photoacoustic tomography , discusses some problems in photoacoustic tomography and indicats the direction of development 简要介绍了光声层析成像技术的机理，报道了国内外几种典型的光声成像方法，讨论了目前光声层析成像研究中存在的问题，并指出了光声层析成像发展方向。
The mechanism of photoacoustic was briefly introduced , the development of photoacoustic imaging technology and algorithm of reconstructed images , which has instructional effect on development of photoacoustic imaging technology , were reported 摘要简要介绍了生物医学中的光声成像技术机理，总结报道了国内外几种典型的光声成像方法和光声图像重建算法的发展历程及其最新进展，指出该技术是一种很有应用前景的医学检测方法。
Then , a multi - element linear transducer array system based on the high - speed data acquisition card was designed and realized photoacoustic imaging by it firstly . compared to other existing technology and algorithm , the pa imaging based on transducer array was characterize by speediness and convenience 其次，在高速采集卡的基础上设计研制了基于多元线性阵列探测器系统的快速光声层析成像装置，首次实现了基于多元阵列探测器的光声成像。
It can provide a new approach for tissue functional imaging in vivo , and may have potential in developing into an appliance for clinic diagnosis . finally , a fast photoacoustic ( pa ) imaging system setting based on multi - element linear transducer array system was developed and tested on tissue phantoms 该装置和方法与现有的成像方法比较，具有快速方便的特点，将它应用于生物组织的光声成像，有望成为一种组织功能在体成像的新方法，并发展成为一种低成本的实用的临床诊断装置。
In addition , photoacoustic imaging combining ultrasonic imaging was developed and tested , which provided more information for biological tissue functional imaging . in addition , affection for imaging of different frequency band pa was discussed . when the frequency range of transducers accords to that of absorbers , almost whole frequency component of photoacoustic pressure can be detected 该系统不仅能够实现光声成像，同时能够实现超声成像，还能够实现光声和超声结合成像，这种结合成像为生物组织的功能成像提供更丰富的信息，并进行了光声和超声结合的成像实验。
The acoustic 3d imaging sonar can obtain the 3d slice images by the receiving sound signals . so the underwater intelligent robot can identify and classify the detected target . in this paper , the hardware system of the underwater receiving unit of the acoustic 3d imaging sonar is researched and implemented 水下三维声成像声纳通过获取水下目标的三维声信息，并在此基础上提取出目标的三维切片声图像，实现对探测目标的三维识别和分类，从而完成声视觉的任务。
The cell function analyzer based on the usb data acquisition card will apply in the detection of the cell luminescence and some correlated clinical assay widely , and the multi - element transducer array system based on the same card has the same potential application approach in the biological tissue photoacoustic imaging and noninvasive detector 在此基础上研制的细胞功能分析仪将在细胞的化学发光检测以及相关的临床应用方面具有重要的应用前景，同时开发的多元阵列探测器系统在生物组织的光声成像以及无损检测方面有着同样的应用前景。
