【摘要】 研究了燃气体积修正仪在天然气标准参比条件下(20℃,101.325 kPa)累积流量示值误差的校准方法。根据不同燃气体积修正仪的结构特点,使用研制的一体式或分体式标准装置对样机完成校准实验。分别采用比较法和分部法计算,比较4种数据结果,评估使用不同标准装置采用不同方法时的不确定度,比较各自特点和适用性,得出校准燃气体积修正仪的合理方法。更多还原

【Abstract】 Calibration method for the error of the total flow at standard condition(20℃,101.325 kPa) of the gasvolume conversion device is studied.According to the structural characteristics of different gas-volume conversion device,the experimental results of the prototype are completed by using the integrated or split type standard device.Respectively by comparison and division method of calculation and comparison of four kinds of data results,evaluation using different standard device adopts different methods of uncertainty,compare their characteristics and applicability of the obtained calibration gas-volume conversion device method is reasonable.更多还原