称重法低温流量校准测控系统设计与实现

Design and Implementation of Measurement and Control System at Low Temperature Flow Calibration for Weighing Method

摘要:

针对称重法低温流量校准系统中介质环境的安全性及系统工艺流程的复杂性,设计开发了一套基于工业控制计算机的板卡的测控系统,实现系统执行的自动化；从校准系统的原理、测控要求及工作流程介绍了系统的总体设计思路,从系统的硬件组成及功能实现了系统的硬件设计,考虑软件的可视化及模块化原则,攻克了软件实现的主要技术要点；通过对系统软硬件调试,该系统功能完备、可靠、方便,满足低温状态下流量计校验的要求。

Abstract:

According to medium environment safety and system complexity of weighing method at low temperature flow calibration system, measurement and control system at low temperature calibration was developed based on the industrial control computer and card. System execution was automated.The paper introduces the overall design ideas of calibration system from the principle、control requirements and work flow, the hardware design was realized from the system’s hardware composition and function,the main key technologies of the software was overcomed from consider visualizing and modular software.Through the hardware and software of the system debugging,the system function is complete,reliable,convenient,meet the test requirements of flowmeter under low temperature.