采用电容传感器的型砂含水率检测仪  

Detector for water content of molding sand with capacitance sensor

作　　者：杨三序[1] 王业正 

机构地区：[1]商丘师范学院物理系,河南商丘476000 [2]商丘车辆总厂,河南商丘476000

出　　处：《传感器与微系统》2008年第1期67-68,71,共3页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(60572001)

摘　　要：介绍一种采用电容传感器的型砂含水率检测仪,它采用微电容测量技术对信号进行检测,并通过单片机对数据进行处理和控制,测量准确度高于1%,既可作为便携式仪表使用,也可用在生产线上实现混砂加水的自动控制,具有使用方便、测量速度快、性能稳定、控制可靠等优点。A detector to measure the water content of molding sand with capacitance sensor is introduced. Micro-capacitance measuring technique is applied to detect the signal, then the data is processed and controlled by SCM. A measuring precision is higher than 1% , and other merits are convenience at use, fast measuring speed, stable performance and easy controlling, the detector can be used as a portable meter, meanwhile it works to realize the automatic control of adding water to the sand at the product line.

关 键 词：型砂含水率 电容传感器 检测仪 单片机 

分 类 号：TG221.1[金属学及工艺—铸造] TP212.9[自动化与计算机技术—检测技术与自动化装置]