西南交通大学学报2012，Vol.47Issue(1)：115-120,6.DOI:10.3969/i.issn.0258-2724.2012.01.019
基于PCI4732的高定位精度光声成像系统设计
Design of Photoacoustic Imaging System with High Positioning Accuracy Based on PCI4732
荣健 1陈炳章 1钟晓春 2黄林 1蒋华北1
作者信息
- 1. 电子科技大学物理电子学院,四川成都610031
- 2. 西南交通大学物理科学与技术学院,四川成都610031
- 折叠
摘要
Abstract
In order to research the photoacoustic imaging abilities of different absorbers, a photoacoustic imaging system was developed based on Labview software design platform coupled with PCI4732 and high positioning accuracy rotation stage RT-5-10. This system consists of a pulsed laser, an immersion probe and an amplifier and so on, and a PCI ( peripheral component interconnect) bus was used to realize the connection between the PCI card and a computer. A high resolution filtered back-projection reconstruction algorithm was used to process the data and obtained high contrast and high resolution images. To verify the practicability of the developed system it was tested using human hairs as objects respectively with 2.25, 5.00 and 10.00 MHz transducers. The result indicates that a 5 MHz transducer can gain clearer images than a 2. 25 or 10 MHz transducer to show that certain absorber should correspond to certain frequency of transducer.关键词
高定位精度/超声探头/光声成像技术/分辨率/PCI4732Key words
high positioning accuracy/ ultrasonic probe/ photoacoustic imaging technology/ resolution/ PCI4732分类
数理科学引用本文复制引用
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,2012,47(1):115-120,6.
