Patent · US Active

Method for calibrating a mass spectrometric sniffing leak detector

US8302454B2 · kind B2 · utility

1Cited by

3References

6Claims

0Family size

Assignee

INFICON AG · LI

Inventors

Norbert Rolff · Horrem, DE
Randolf Rolff · Horrem, DE
Ludolf Gerdau · Cologne, DE

Key dates

Filing date	Jun 2, 2006
Grant date	Nov 6, 2012
Priority date	—
Expiry date	Jun 12, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG01M3/202
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Usually, a sniffing leak detector must be calibrated for each tracing gas. The calibration comprises ranging of the spectral positions into the mass spectrum and the amplitude height. At least one mass line is determined with a calibrating gas. The mass lines lying between two mass lines and/or between a zero point and a line are determined by interpolation and/or extrapolation. In this manner, a sniffing leak detector can be used for such tracing gases which have not previously been used for calibration purposes.

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