Monitoring of film formers

Details Monitoring of film formers Monitoring of film formers

1991-07-08

1992-10-13

Evans, F. L.

Optics: measuring and testing

By configuration comparison

With photosensitive film or plate

356446, 356448, 356244, 250576, 250341, 250372, G01B 1106

Patent

active

051555557

ABSTRACT:
Method and apparatus for measuring film formers in an opaque process stream by immersing a disc in the fluid stream, allowing time to accumulate film formers, then rotating the disc to expose the previously immersed section to optical monitoring by which a sample reflectance and a reference reflectance are compared.

REFERENCES:
patent: 2489286 (1949-11-01), Grant, Jr.
patent: 3589813 (1971-06-01), Sturzinger
patent: 4135100 (1979-01-01), Harada et al.
patent: 4916317 (1990-04-01), Gabriel et al.
patent: 4943735 (1990-07-01), Nishikawa

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