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1 引言目前国内测量气体流量的手段多是采用DDZ—Ⅱ型或 DDZ—Ⅲ型电动单元组合仪表,完成具有温压补偿功能的气体流量计量。这种方法不仅成本高而且运算精度低、可靠性差。我所设计和研制的 XQB—13型气体流量计算器,由于采用了微型机技术和
1 Introduction At present, most of the means to measure gas flow in China are to use DDZ-Ⅱ or DDZ-Ⅲ electric unit combination meter to complete the gas flow measurement with temperature and pressure compensation function. This method not only high cost and low accuracy, reliability is poor. I designed and developed XQB-13-type gas flow calculator, due to the use of microcomputer technology and