电容测压器的光触发与红外通信设计

Design of Optical Trigger and Infrared Communication for Capacitive Manometer

针对内触发的壳体电容电子测压器易发生误触发与不触发,插线通信方式繁琐且通信插口易磨损等缺点,设计了光触发与红外通信的壳体电容测压器。设计了高强度透明屏蔽关窗复合结构与光电触发电路,保证测试场中光能触发测压器采集存储压力信号,同时屏蔽对测试电路有害的干扰电磁场波段。设计了红外通信接口,实现了测压器与上位机的正常通信。测试实验表明,改进后的测压器能可靠工作。

The shell capacitive electronic manometer with internal trigger has some shortcomings, such as error trigger and no trigger, complicated plug line communication and communication socket easy to be worn. According to the shortcomings, the shell capacitive manometer and infrared communication for capacitive manometer is de？signed. The high strength transparent shield window and photoelectric trigger circuit are designed to ensure the ma？nometer with light energy trigger to collect and storage pressure signals in a testing field. And the electromagnetic in？terference affected to the testing circuit is shielded. The infrared communication interface is designed. The normal communication between the manometer and the host computer is realized. Test experiments show that the improved manometer can operate reliably.