32通道声发射特征参数的实时提取——现场可编程门阵列的设计  

ACQUISITION OF 32-CHANNEL ACOUSTIC EMISSION PARAMETERS: DESIGN OF FIELD PROGRAMMABLE GATE ARRAY

作　　者：夏展宏 刘时风[1] 

机构地区：[1]清华大学机械工程系,北京100084

出　　处：《无损检测》2003年第8期390-394,共5页Nondestructive Testing

基　　金：北京市自然科学基金资助项目(30110 0 1)

摘　　要：采用硬件描述语言VHDL(very high speedintegratedcircuithardwaredescriptionlan guage)设计出现场可编程门阵列 (FPGA)芯片 ,实时提取 3 2通道的声发射信号的两个特征参数 (到达时间和声发射振铃计数 ) 。An FPGA(field programmable gate array) chip was developed with VHDL(very high speed integrated circuit hardware description language) for real time picking up of two acoustic emission parameters(arriving time & ring count) in 32 channel acoustic emission testing, which could be used to realize source location and intensity evaluation.

关 键 词：声发射检验 声发射信号 现场可编程门阵列 硬件描述语言 VHDL 设计 

分 类 号：TG115.28[金属学及工艺—物理冶金]