Technique involves coating suspected area with water-soluble black paint that gives even, infrared emission. Painted area is warmed with heat gun; an infrared scanner is used to detect cooled spot on jacket exterior. Introduction of atmospheric pressure into jacket intensifies leak jet and improves test sensitivity.
Thermal-leak analyzer for vacuum-jacketed lines
NASA Tech Briefs ; 3 , 1
1978-06-01
Miscellaneous
No indication
English
NTRS | 1976
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