Optics: measuring and testing – By shade or color – With sample responsive to plural colors applied simultaneously
Patent
1997-10-03
2000-05-09
Rosenberger, Richard A.
Optics: measuring and testing
By shade or color
With sample responsive to plural colors applied simultaneously
356 70, 356382, 356434, G01N 2125
Patent
active
060611391
ABSTRACT:
To nondestructively diagnose a weight reduction ratio of an insulating material or a lubricating oil without stopping operation of the equipment, a nondestructive diagnostic method uses an optical fiber probe type sensor in which a light transmission loss or a reflective absorbance difference is used as a parameter.
REFERENCES:
patent: 5049742 (1991-09-01), Hosonuma et al.
Kano Ikushi
Kashiwamura Yoshikiyo
Takezawa Yoshitaka
Hitachi Ltd
Rosenberger Richard A.
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