天然气的计量技术源自1843年英国人威廉·理查兹创立的干式气体计量技术,到1944年托马斯·格洛弗创建第一家皮膜表公司,天然气计量才有了真正意义上的计量仪表;20世纪20年代基于Roots兄弟的裂叶轮原理诞生了罗茨表;涡轮流量计虽然很早就存在,但因为人工煤气杂质多,直到20世纪50年代才进入到 Natural gas metering technology stems from the dry gas metering technology pioneered by William Richards in 1843. By 1944, Thomas Glover founded the first membrane watch company, and natural gas metering had a true gauge ; The Roots Bros. principle was rooted in the 1920s based on the split-blade principle of the Roots Brothers; although turbine flow meters existed very early, they were not available until the 1950s because of the high levels of artificial gas impurities