超声成像实验仪  

THE INSTRUMENT OF THE ULTRASONIC TOMOGRAPHY EXPERIMENT

作　　者：杨吉生[1] 苏晓星[1] 周国辉[1] 

机构地区：[1]天津大学,天津300072

出　　处：《大学物理实验》2001年第4期25-27,共3页Physical Experiment of College

摘　　要：我们模拟了一个原理相对容易、结构相对简单的超声成像实验。通过超声波测试仪发射和接收换能器信号 ,输出的电压信号送入计算机的A/D卡。A/D卡的另一通道采集换能器的跃变位置信息 ,并将数据提供给成像程序 ,把物体某一断层的截面图画出。通过这一实验 ,我们可以了解超声波在固 /液两相流中的传播原理 。We simulate a simpler Ultrasonic Transmission Tomographic experiment inprirciple and structure as compared to real CT.We emit and receive signals fromtransducers by using Measuring Ultrasound Equipment,and then put continent voltages to the A/D card in the computer.In the same time ,the other channel of theA/D card collects information of the transducer's positions and provides imageprogram with data.By the experiment,we can understand the transmission primipleof the Ultrasound in the solid and liquid and grasp the solutions of data acquisition and imaging.

关 键 词：超声成像 数据采集 数据处理 

分 类 号：O426.2[理学—声学]