发明名称 GAS TURBINE METER
摘要 A gas turbine meter (20) includes a measuring cartridge (36) which has a measuring ro-tor (38) that rotates in one direction at a speed approximately proportional to the velocity of gas flowing through the meter (20) and a reference rotor mounted downstream of the measuring rotor (38) which rotates in the opposite direction from the measuring rotor. An inlet flow straightener (28) upstream of the measur-ing rotor causes gas to flow substantially axially within the meter, and a reference flow straight-ener mounted between the measuring rotor and the reference rotor also causes gas to flow substantially axially within the meter. A signal pro-cessor provides an indication of the accuracy of the gas turbine meter based on the quotient of a measuring signal, which is proportional to the speed of rotation of the measuring rotor, divided by a reference signal, which is proportional to the speed of rotation of the reference rotor.
申请公布号 CA2277381(C) 申请公布日期 2007.09.18
申请号 CA19982277381 申请日期 1998.01.21
申请人 AMERICAN METER COMPANY 发明人 SCHIEBER, WILLIAM M.
分类号 G01F1/10;G01F1/05;G01F1/08;G01F1/115;G01F1/12;G01F15/06;G01F15/075 主分类号 G01F1/10
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