电容测微在印刷机墨层厚度在线监测中的应用  

Applying of Capacitance Transducer to Printing Machine Thickness of Printing ink On-line Monitoring

作　　者：张海燕[1] 李伟[1] 徐宏伟[1] 

机构地区：[1]西安理工大学印刷包装工程学院,陕西西安710048

出　　处：《仪表技术与传感器》2008年第9期83-85,95,共4页Instrument Technique and Sensor

摘　　要：介绍了一种使用电容传感器在线监测印刷机橡皮滚筒上墨层厚度并进行自动控制的方法,设计了一个由电容传感器检测为主的在线监测系统。当印刷机运转时,实时监控橡皮滚筒上的墨层厚度,并转化为印品上的墨层厚度。当超限时,系统发出警报提示,并可通过改变印刷压力改变墨层厚度,实现了印刷机墨层厚度监测的自动化。This paper proposed a method which could monitor and control the thickness of printing ink on the blanket cylinder automatically using capacitance transducer. After analyzing the work principle of capacitance transducer and the work conditions in printing machines, a monitoring system that consists of capacitance transducer unit, voltage-magnified circuit, detecting circuit and detecting circuit and so on was designed. And a developed method was put forward to watch and control the thickness of inking-up on blanket cylinder. The system will give an alarm when the thickness is over-limit automatically. The system also uses on-line monitoring method to realize the automation of change the thickness of printing ink.

关 键 词：在线监测 电容传感器 墨层厚度 自动控制 

分 类 号：TH89[机械工程—仪器科学与技术]