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杭州先锋电子技术有限公司读者问:使用钟罩式气体流量标准装置检定膜式燃气表的流量调节器是放在表前还是表后合理?这两种方法检定有何差别?杨有涛高工(北京市计量检测科学研究院)答:采用钟罩式气体流量标准装置(以下简称钟罩)检定燃气表方法有静态法和动态法。示值误差按公式(
Hangzhou Pioneer Electronic Technology Co., Ltd. Readers asked: the use of bell-type gas flow standard device membrane Metered gas meter flow regulator is placed in front of the table or after the test? What is the difference between these two methods test? Yang You Tao, senior engineer (Beijing City Institute of Metrology) A: The bell-type gas flow standard device (hereinafter referred to bell) test gas meter method static method and dynamic method. Indication error according to the formula