System and method to monitor for fouling

Details System and method to monitor for fouling System and method to monitor for fouling

1998-04-03

2000-02-08

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250575, 73 6162, G01N 500

Patent

active

060230703

ABSTRACT:
A system and a method for monitoring fouling in a fluid stream are provided. A light source generates a light path directed to two distinct portions of a fluid stream, one of which includes a translucent conduit. The conduit experiences fouling on the walls thereof. The light directed towards the conduit is absorbed or scattered to a varying degree as a function of foulant thickness and composition and the wavelength of the light employed. A comparison of foulant contained in the fluid itself may be compared to the foulant in the conduit, and a signal representative thereof can be generated. As a result, dosage of agents added to the fluid stream to control the foulant in the system may be controlled.

REFERENCES:
patent: 2719427 (1955-10-01), McKeown
patent: 3731091 (1973-05-01), Rosso et al.
patent: 4015134 (1977-03-01), Sturm
patent: 4105334 (1978-08-01), Halko et al.
patent: 4896047 (1990-01-01), Weaver et al.
patent: 5185533 (1993-02-01), Banks et al.
patent: 5488856 (1996-02-01), Dirk

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