掌上型数字显示涡流导电仪的研制  

Development of Palmtop Digital Electrical Conductivity Meter

作　　者：任吉林[1] 张泽义[1] 陈金贵[1] 刁海波[1] 林俊明[2] 张开良[2] 

机构地区：[1]南昌航空工业学院无损检测技术教育部重点实验室,江西南昌330063 [2]爱德森(厦门)电子有限公司,厦门361001

出　　处：《无损检测》2006年第12期617-619,671,共4页Nondestructive Testing

基　　金：江西省科技厅工业攻关项目(CB-05-08)

摘　　要：介绍了掌上型数字显示涡流导电仪的基本实现原理,通过数值计算,提出用相位分析法来抑制提离效应。在此原理的基础上,设计了基于AT91RM9200处理器的涡流电导率测量系统。并给出了该系统的软、硬件设计方法。The basic development principle of palmtop digital electrical conductivity meter was introduced. Through numerical computation, a method that using phase analytical method to correct lift off effect in the impedance plane was put forward. Based on the principle, the meter system was designed by using high performance microprocessor AT91RM9200. And the design method of hardware and software were explained.

关 键 词：涡流 电导率 提离效应 相位分析法 

分 类 号：TG115.28[金属学及工艺—物理冶金]