双控头电涡流法食品罐头真空度测量仪  

Eddy Current Method for Vacuum Detector of Food Can with Two Sensors

作　　者：刘南平[1] 崔雁松[1] 李佳[1] 蒋敦斌[1] 孟庆杰[1] 王小星[1] 

机构地区：[1]天津职业大学,天津300402

出　　处：《传感技术学报》2005年第1期129-131,共3页Chinese Journal of Sensors and Actuators

摘　　要：利用电涡流原理采用双传感器开发出检测密封罐头内部压力或真空度的仪器根据两个传感器输出电信号差计算出罐头内部压力或真空度。该仪器既具有本机显示和打印测量结果的功能 ,又能通过USB接口与上位机配合使用 ,具有小型轻便 ,检测数据精确和操作界面友好等特点。The paper introduces an apparatus based on the principle of eddy current for detecting the internal vacuum or pressure in food cans. This apparatus is equipped with two sensors. By the subtraction of electric signals from the sensors it can measure the amount of internal vacuum or pressure. It can also display and print the measuring results. Using USB interface it can cooperate with the upper machine. the apparatus is portable, precise and friendly.

关 键 词：罐头真空度 电涡流法 无损检测 

分 类 号：TP212.12[自动化与计算机技术—检测技术与自动化装置]