一种数控超声检测波形合成器  

Digital controlled ultrasonic waveform synthesizer

作　　者：吕纯[1] 郭建强[1] 高晓蓉[1] 

机构地区：[1]西南交通大学物理科学与技术学院光电工程研究所,成都610031

出　　处：《信息技术》2017年第4期98-101,共4页Information Technology

基　　金：四川省科技计划项目(15ZC1647-2015GZ0302)

摘　　要：文中以直接数字频率合成(DDS)技术为基础,FPGA为开发平台,单片机MSP430为控制器研究设计的超声波形合成器,可灵活选择信号波形,可调输出频率,可控信号脉冲数目,从而可适用于不同频率的超声探头及不同的检测对象,可有效增强超声探伤系统的适应性和灵活性。In this paper,a digital controlled ultrasonic waveform synthesizer was designed based on the direct digital frequency synthesis( DDS) technology. And FPGA was treated as a development platform,the microcontroller MSP430 as the controller. The different types of waveform can be chosen flexibly,of which the frequency was adjustable. In addition,the number of pulse could be controlled. So that,such type of digital controlled ultrasonic waveform synthesizer can be applied to different frequencies of ultrasound probe and detection of different objects,which will effectively enhance the adaptability and flexibility of the ultrasonic flaw detection system.

关 键 词：波形合成器 DDS技术 FPGA MSP430 超声 

分 类 号：TP274.5[自动化与计算机技术—检测技术与自动化装置]