气体流量计远程校准系统研究

Research on remote calibration system of gas flow meter

为了探索气体流量计的校准方法,对其远程校准技术进行了研究。阐述了量值传递和远程校准的原理,设计了系统架构,研制数据采集终端,开发校准软件平台,并建立了实验系统,进行了实验。结果表明:数据采集终端与平台通信良好,数据能实时准确传送,校准平台对实验系统内仪表进行校准,得到该远程校准系统的扩展不确定度为0.52%(k=2),系统具有实际应用的可行性。

In order to explore gas flow meter calibration method, study on its remote calibration technology. Describes transfer and remote calibration principle, design system architecture, develop data collection terminals and calibration software platform, and establish experimental system for test. The results show that communications between data collection terminals and platforms is good, data transmission is accurate and real-time, calibration platform calibrate instrument in experimental system and obtain expanded uncertainty of remote calibration system, which is 0.52 % （ k = 2 ）, the system has practical applications feasibility.