Patent · US Active

Leak detector with optical tracer gas detection

US8756978B2 · kind B2 · utility

2Cited by

9References

5Claims

0Family size

Assignee

INFICON AG · LI

Inventors

Vladimir Schwartz · Horlivka, UA
Daniel Wetzig · Cologne, DE
Boris Chernobrod · Rehovot, IL

Key dates

Filing date	Apr 9, 2010
Grant date	Jun 24, 2014
Priority date	—
Expiry date	Sep 5, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01M3/38
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A leak detector comprises a cell provided with a tracer gas inlet preferably permeable to a tracer gas. In the cell, the tracer gas is caused to assume an energetically higher metastable state. By means of laser spectroscopy the absorption spectrum of the metastable tracer gas is sampled in an optical measuring section, whereby the presence of tracer gas is detected.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.