基于信号对比的电路板故障诊断技术  

Failure diagnosis technology of circuit board based on signal comparison

作　　者：严瑞峰 陆敬武 刘李春 孙桂清 徐春涛 闫伟 史浩然 Yan Ruifeng;Lu Jingwu;Liu Lichun;Sun Guiqing;Xu Chuntao;Yan Wei;Shi Haoran

机构地区：[1]中油测井物资装备公司

出　　处：《国外测井技术》2024年第5期36-42,M0002,共8页World Well Logging Technology

摘　　要：操作便捷、诊断准确、执行高效一直是测井仪器电路板维修的方向。本文从大部分测井仪器电路板的电气特性入手,基于可将多种工作电源、程控波形发生电路和处理采集电路整合在一起的电路板检测装置,阐述了建立标准电路板各测量点的标准波形库的方法和被检测板的检测流程,通过信号对比异常的逻辑关系,建立故障点智能诊断结论,实现了专家诊断功能,通过应用案列阐述了该技术应用效果及前景。Convenient operation,accurate diagnosis and efficient execution have always been the direction of logging instrument circuit board maintenance.Based on the electrical characteristics of the circuit board of most logging instruments,the paper can integrate the programmed waveform generating circuit and the processing acquisition circuit to establish the standard waveform library of the standard circuit board and the detection process,realize the expert diagnosis function and describe the application effect and prospect of the technology through the application case.

关 键 词：电路板 故障维修 标准波形 逻辑诊断 

分 类 号：TN4[电子电信—微电子学与固体电子学]