多功能宽带超声检测和三维成像技术研究

A study on multipurpose wideband ultrasonic test equipment and reconstruction of 3-D image

摘要: 利用直接数字成像和程控采样扫描技术,完成了THMUT—l型多功能宽带超声检测仪研制工作。一台机器可同时完成A、B、C(多断层)、声显微镜等多种功能。工作频带为5—105MHz,对样品只需进行一次检测,即可将结果显示在微机终端屏幕,还可进行分析、处理。利用表面成像法,把THMUT—l所得多断层C扫描测试结果重建出—幅三维图像。上述技术在工业和医学上可望有较广泛应用。

Abstract: The THMUT-l Multipurpose Ultrasonic Test Equipment is developed, in which the direct digital imaging and programmable sample scanning are used. The operation frequency range is 5 105MHz. The A,b, c modes testing can be accomplished at the same time. The result is displayed on the screen of the computer terminal.In addition, a 3 D ultrasonic image is reconstructed and displayed by using Surface Reconstruction Algorithm. The technique has potential applications in industry and medecine.