Apparatus and method for determining pulp stock consistency
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United States of America Patent
Stats
-
Mar 26, 1985
Grant Date -
N/A
app pub date -
Dec 8, 1982
filing date -
Dec 8, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus and method for determining the percentage of solid particles in a suspension (consistency) is provided. A source of diffused radiant energy is provided which energy is directed toward a suspension to be measured. The portion of the energy which is forward-scattered by the suspension is detected and a first signal indicative of the magnitude of the forward-scattered energy is produced. The portion of energy which is back-scattered by the suspension is detected and a second signal indicative of the magnitude of back-scattered energy is produced. The first and second signals are combined at a predetermined ratio to produce a feedback signal used to control the intensity of energy emitted from the radiant energy source. The intensity of energy emitted from the source is a function of the forward-scattered and back-scattered energy and is directly proportional to the consistency of the suspension being measured. By monitoring the power driving the radiant energy source, a display calibrated in terms of percent consistency can be provided.
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Cited Art Landscape
Patent Citation Ranking
- 14 Citation Count
- G01N Class
- 0 % this patent is cited more than
- 40 Age