Method and device for detecting leakage flow, real volume flow or real volume mass flow rates opens a reference leakage valve for a sort period in a measurement device detecting a volume flow rate with a computer.

摘要

A reference leakage valve (11) is opened for a sort period in a measurement device (2) as a supply valve (10) is closed for supplying a system with gas pressure (1). A volume flow rate easily detected by a computer (13) through knowing current pressure in a system measured by a pressure sensor (12) flows through a reference filter or nozzle (14) at a reference pressure (4), mostly environmental pressure.