Transfer of dye shows quality of contact between two mating parts. Mating parts checked for fit by spreading fluorescent dye on one, making brief light contact with other, and looking (under UV light) for transferred dye. Dye offers greater visibility under ultraviolet illumination, allowing better indication of how precisely parts match and what areas interfere.
Fluorescent Gage Indication
NASA Tech Briefs ; 8 , 4
1985-04-01
Miscellaneous
No indication
English
Strain gage dynamometer for direct horsepower indication
Engineering Index Backfile | 1963
|The narrow gage, especially one-meter gage
Engineering Index Backfile | 1925
NTIS | 1995
SAE Technical Papers | 1958
Engineering Index Backfile | 1940
|