微型机与应用2016，Vol.35Issue(23)：83-85,89,4.DOI:10.19358/j.issn.1674-7720.2016.23.024
基于 FPGA的电磁超声脉冲信号发生器的设计
Design of electromagnetic ultrasonic pulse signal generator based on FPGA
马赵 1任尚坤 1杨梅芳1
作者信息
- 1. 南昌航空大学无损检测技术教育部重点实验室，江西南昌330063
- 折叠
摘要
Abstract
Excitation signal source is one of the core modules of the electromagnetic ultrasonic testing system ,whose output signal determines the quality of the detection of electromagnetic ultrasonic detector .According to the requirement of the excitation source of the electromagnetic ultrasonic testing system , we have designed the sine pulse excitation source .The system mainly includes the FPGA hardware language to syn-thesize the pulse signal , digitial to analog convertion , filter and amplify , power amplifier , impedence matching and some other hardware cir-cuit.The system can output the sin pluse signal whose frequence , initial phase and duty ratio can be adjusted and meet the requirment of EMAT.The project provides reference for the design of portable electromagnetic ultrasonic detector .关键词
FPGA/电磁超声检测/信号源/硬件电路Key words
FPGA/electromagetic ultrasonic testing/signal source/hardware circuit分类
金属材料引用本文复制引用
马赵,任尚坤,杨梅芳..基于 FPGA的电磁超声脉冲信号发生器的设计[J].微型机与应用,2016,35(23):83-85,89,4.
