LEAK GAGE PROBE Russian patent published in 2014 - IPC G01M3/04 G01M3/20

Abstract RU 2523070 C2

FIELD: instrumentation.

SUBSTANCE: invention relates to leak gage probes. Proposed device comprises probe (10) connected via hose (11) via throttle (D2) with vacuum pump (16) and test gas pickup (15). Distribution point (24) is located downstream of throttle (D2). Branch pipe (25) extends from distribution point (24) to test gas pickup (15). Throttle (D2) is composed by diaphragm with round opening. Diaphragm conductance is selected so that pressure drop at diaphragm is higher than P₂/2 where P₂ is the intermediate pressure at distribution point.

EFFECT: stable sensitivity.

5 cl, 5 dwg

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RU 2 523 070 C2

Authors

Daniel' Vettsig

Dates

2014-07-20—Published

2010-02-05—Filed