US 12,253,404 B2
Measuring method and measuring apparatus for determining a flow rate of a process gas
Michael Buchner, Graz (AT); and Heribert Kammerstetter, Salzburg (AT)
Assigned to AVL LIST GMBH, Graz (AT)
Appl. No. 17/775,003
Filed by AVL LIST GMBH, Graz (AT)
PCT Filed Nov. 6, 2020, PCT No. PCT/AT2020/060391
§ 371(c)(1), (2) Date May 6, 2022,
PCT Pub. No. WO2021/087540, PCT Pub. Date May 14, 2021.
Claims priority of application No. A 50950/2019 (AT), filed on Nov. 6, 2019.
Prior Publication US 2022/0357193 A1, Nov. 10, 2022
Int. Cl. G01F 25/10 (2022.01); G01F 9/00 (2006.01); G01G 17/06 (2006.01)
CPC G01F 9/003 (2013.01) [G01F 25/14 (2022.01); G01G 17/06 (2013.01)] 17 Claims
OG exemplary drawing
 
1. Measuring method for determining a flow rate of a process gas, contained in a gas pressure vessel charged with overpressure, and escaping from the gas pressure vessel with the flow rate, wherein the method including the following steps:
exerting a vessel weight force from the gas pressure vessel together with the contained process gas,
compensating for the vessel weight force by means of a counterweight force exerted by a counterweight, or the counterweight force by means of the vessel weight force exerted by the counterweight, at least partially to a resultant measured weight force,
determining the measured weight force at at least two points in time, and
determining the flow rate of the process gas using the measured weight force determined at the at least two points in time.