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基于PCI4732的高定位精度光声成像系统设计

荣健 陈炳章 钟晓春 黄林 蒋华北

荣健, 陈炳章, 钟晓春, 黄林, 蒋华北. 基于PCI4732的高定位精度光声成像系统设计[J]. 西南交通大学学报, 2012, 25(1): 115-120. doi: 10.3969/j.issn.0258-2724.2012.021.01.019
引用本文: 荣健, 陈炳章, 钟晓春, 黄林, 蒋华北. 基于PCI4732的高定位精度光声成像系统设计[J]. 西南交通大学学报, 2012, 25(1): 115-120. doi: 10.3969/j.issn.0258-2724.2012.021.01.019
RONG Jian, CHEN Bingzhang, ZHONG Xiaochun, HUANG Lin, JIANG Huabei. Design of Photoacoustic Imaging System with High Positioning Accuracy Based on PCI4732[J]. Journal of Southwest Jiaotong University, 2012, 25(1): 115-120. doi: 10.3969/j.issn.0258-2724.2012.021.01.019
Citation: RONG Jian, CHEN Bingzhang, ZHONG Xiaochun, HUANG Lin, JIANG Huabei. Design of Photoacoustic Imaging System with High Positioning Accuracy Based on PCI4732[J]. Journal of Southwest Jiaotong University, 2012, 25(1): 115-120. doi: 10.3969/j.issn.0258-2724.2012.021.01.019

基于PCI4732的高定位精度光声成像系统设计

doi: 10.3969/j.issn.0258-2724.2012.021.01.019
详细信息
    作者简介:

    荣健(1962-),男,教授,博士,主要研究方向为光声成像技术、光通信与光电系统等,E_mail:rjmail@163.com

Design of Photoacoustic Imaging System with High Positioning Accuracy Based on PCI4732

  • 摘要: 为了研究光声成像技术对不同吸收体的成像性能,利用PCI4732和高精度旋转台RT-5-10,在Labview软件设计平台上开发了一套光声成像系统.系统由脉冲激光器、水浸探头和放大器等硬件组成,采集卡通过PCI总线与电脑连接.采用高分辨率滤波反投影重建算法对数据进行处理,得到较高对比度和分辨率的图像.分别采用2.25、5.00和10.00 MHz的超声探头对发丝进行试验,以验证系统的实用性.试验结果显示:采用5.00 MHz的探头比采用2.25和10.00 MHz的探头得到的发丝的图像更清晰,表明对于一定尺寸的吸收体,需要选择一定中心频率的探头,才能得到清晰的图像.

     

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  • 收稿日期:  2011-10-17
  • 刊出日期:  2012-02-25

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