Method and apparatus for monitoring the partial density of metal and acid in pickling baths
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United States of America Patent
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Nov 12, 1991
Grant Date -
N/A
app pub date -
Jul 22, 1988
filing date -
Jul 23, 1987
priority date (Note) -
Expired
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Abstract
A method and an apparatus for determining the partial density, or concentration, of various substance components in a liquid, by calculating the absorption of two different gamma radiations, one of higher energy and one of lower energy. To this end, the liquid is carried in a conduit system, irradiated by the two gamma radiations, and the attenuation of their intensity is detected. A specific combination of the counting rates of the two radioactive sources is used for determining the partial density of two substances in a three-substance system. The primary field of application is the continuous, contactless monitoring of the acid and metal concentration in pickling baths for chemical descaling, and for roughening and cleaning of metal surfaces.
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