Through program technique on line in combination with usb , the box of ultrasonic flaw detector being controlled and displayed by pc is designed , which not only improves device performance , reduces cost , makes device handy , but also caters for tendency to development of peripheral of pc 通过在线可编程技术及通用串行接口技术的结合应用，把探伤仪外置盒设计成基于pc机控制和显示的仪器，既提高了仪器的性能，降低了成本，又方便了使用，迎合了pc机外围接口设备的发展趋势。
For the purpose of ensuring the quality of our products , our company has invested 4 million rmb in building multi - purpose lab , and introducing almighty experiment machine , impulsion testing machine , ultrasonic digital thickness - testing device , full - automatic ultrasonic thickness - testing device , sclerometer , ultrasonic flaw detector , x - ray machine , magnetic particle flaw detector and other advanced quality inspecting devices 为了确保产品的质量，公司投资400多万元建起了多功能实验室，配备了机械式万能试验机冲击试验机超声波数字测厚仪全自动超声测厚仪里氏硬度计超声波探伤仪x射线机磁粉探伤仪等先进的质量检测设备。
Virtual ultrasonic detector ( vud ) is the result of the combination of virtual instrument technique and ultrasonic detecting technique . vud is smarter , cheaper than traditional instruments and represents the direction of ultrasonic flaw detecting . this paper put forward a project developed on the base of second generation vud 超声波探伤是应用广泛的无损检测方法之一，虚拟超声波探伤仪是虚拟仪器概念在超声波探伤领域的应用，不仅实现了传统的模拟超声波探伤仪的所有功能，而且对传统探伤仪的原有功能进行了扩展，使其具有一定智能处理能力，是超声波探伤技术的一个重要发展方向。
In 2004 the online processing mtc upgraded to the 5th generation and its expanded functional real time warning mrc system , usb storage mmc , blue tooth remote nnt , mineral anti - explode abb wire rope testing instrument have applied in 18 industries and 3 big fields and sold more than 1000 sets during past 8 years 2004年mtc升级进入第五代并和其功能扩展的mrc实时报警、 mmc优盘闪存、 nnt蓝牙遥控、 abb矿用隔爆型钢丝绳探伤仪全面进入18个行业和三大领域，八年共计销售达1000余套。
Following notebook computer being used broadly in field detectiong , peripheral which have usb interface are prepotent more and more . the ultrasonc flaw detector we ' re designing will be connect with notebook computer in field detection , so we elect usb interface to accomplish transmission between detector and pc . the article not only introduces basic knowledge about usb briefly and gives detailed develop process of usb peripheral and flow diagrams of usb controller , but also operating against our device ' s functions , gives develop process of device driver and important api function being used . in addition , an exclusive interface being used to control and display is designed 我们所设计的探伤仪外置盒在现场作业时是与笔记本电脑相连接的，因此选用usb接口来实现数据在探伤仪外置盒与pc机间的传输。这里简单的介绍了有关usb接口的基础知识，给出了探伤仪usb接口的详细开发过程及usb控制器的程序流程图，并且针对于本仪器要实现的功能，给出了pc机端的设备驱动程序开发过程及关键的api函数调用程序。此外这里还设计了一个专用的控制及显示界面。
According to the shortages of the traditional ultrasonic detectors in online inspection , such as low anti - interference capability and sensibility , through introducing the theory of ultrasonic detection system , a circuit module for signal collecting and amplifying of multi - functional ultrasonic detection system is designed 摘要针对传统超声波探伤仪在进行在线检测时存在抗干扰能力差、灵敏度低等缺点，通过对超声波检测系统原理的介绍，设计了一种用于多功能超声波检测系统检测信号的采集及放大电路模块。
The author has transplanted embedded operating system windows ce to the hardware platform of ultrasonic flaw - detector successfully , and implemented driver of hardware which bases on windows ce . net , such as tft lcd , touch screen , cs8900 internet chip , dma channels , serial ports , audio codec and so on 同时成功地将嵌入式操作系统winodwsce . net移植到探伤仪的硬件平台上，并且实现了基于winodwsce . net的硬件设备驱动程序设计，如tftlcd 、触摸屏、 cs8900网络芯片、 dma通道、串口、 audiocodec等。
