传感技术学报2016，Vol.29Issue(5)：637-641,5.DOI:10.3969/j.issn.1004-1699.2016.05.002
超细硬质合金棒材缺陷电涡流检测系统研发
Development of Defects Detection System for Ultrafine Cemented Carbide Rod Based on Eddy-Current Sensor
摘要
Abstract
Drills for drilling PCB are processed from cemented carbide rods whose edge and surface are usually damaged during centerless grinding process. In order to avoid low defect detection efficiency and high false detec-tion rate by eye inspection,a defect detection system used for ultrafine cemented carbide rods inspection based on eddy-current sensor is developed,and circuits and related software are designed. Lift-off effect and boundary effect are experimentally studied on developed defects detection system,and experimental results show that detection sys-tem can inspect the defected cemented carbide rods effectively and improve detection accuracy rate.关键词
自动检测/硬质合金棒材缺陷/涡流传感器/提离效应/边界效应Key words
automatic detection/defects of cemented carbide rod/eddy-current sensor/lift-off effect/boundary effect分类
信息技术与安全科学引用本文复制引用
余剑武,罗嗣春,徐涛,李典红,涂建刚,罗红..超细硬质合金棒材缺陷电涡流检测系统研发[J].传感技术学报,2016,29(5):637-641,5.基金项目
湖南省自然科学基金项目(12JJ6037) （12JJ6037）
硬质合金国家重点实验室项目(201103003) （201103003）
