电容式玻璃容器在线测厚仪  

Design of Online Capacitive terrarium Thickness Gauge

作　　者：陈峰[1] 刘远峰[1] 文张斌[1] 

机构地区：[1]暨南大学信息技术研究所,广东广州510006

出　　处：《仪表技术与传感器》2009年第5期22-23,共2页Instrument Technique and Sensor

摘　　要：介绍了一种玻璃容器在线测厚仪的设计方法,采用ANSYS对电容传感器建立了有限元静电场模型,对不同厚度玻璃的电容值进行了数值计算。在此基础上,设计了电容运算放大器检测电路。实验证明：在0.5~2.5 mm测量范围内,非线性误差小于0.1%,分辨率优于0.01 mm,完全可替代进口的同类产品。A design of online capacitive terrarium thickness gauge was proposed. ANSYS was used to build finite element model of the capacitance. Then, capacitance change on different glass thickness was valuated. Based on the above, capacitance measurement circuit was designed. Experimental result shows that in the range from 0.5 mm to 2.5 mm, the linearity is less than 0.1%, and the resolution is better than 0.01 mm.

关 键 词：玻璃容器 测厚仪 ANSYS 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]