Refrigerant impurity analyzer

Details Refrigerant impurity analyzer Refrigerant impurity analyzer

1994-11-15

1996-03-12

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250345, 250351, G01J 544, G01J 546, G01N 2161

Patent

active

054988730

ABSTRACT:
A portable refrigeration gas analyzer employs infrared spectroscopy to detect adulterant refrigerant gases in existing R12 refrigeration systems. The analyzer can detect contaminants such as R134a, R22, and butane in concentration as low as 1% by volume. A rugged opto-acoustical infrared narrow band sensor is suitable for field use in the repair of refrigeration systems.

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patent: 5020977 (1991-06-01), Lucas
Goldan, Paul D., An acoustically resonant system for detection of low level infrared absorption in atmospheric pollutants, Oct. 1974, p. 4350, FIG. 1.

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