Patent · US Active

Device and method for identifying refrigerants

US10031075B2 · kind B2 · utility

0Cited by

8References

5Claims

0Family size

Assignee

INFICON AG · LI

Inventors

Gerhard Kuester · Cologne, DE
Werner Grosse Bley · Bonn, DE

Key dates

Filing date	Aug 24, 2012
Grant date	Jul 24, 2018
Priority date	—
Expiry date	May 16, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/317
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device for identifying refrigerants includes a gas cell, which has a test gas inlet and a test gas outlet, an infrared source that radiates through the gas cell, and at least one sensor that detects the infrared radiation that passes through the gas cell. At least one wide-band filter is provided between the infrared source and the sensor. The passband of the at least one wide-band filter includes the absorption spectra of the refrigerants to be detected and does not include the absorption spectrum of hydrocarbons. The gas cell is connected to a cartridge, which contains the refrigerant to be detected in pure form as a reference gas.

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