Method for measuring size distribution
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United States of America Patent
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Feb 21, 1989
Issued Date -
N/A
app pub date -
Oct 19, 1987
filing date -
Mar 14, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The size distribution of wood chips for the manufacture of cellulose pulp is determined by an optoelectric measuring method and device. Light reflected from a conveying surface (2) and lump material distributed thereon, is recorded optically (3) at short time intervals, and recorded signals are processed electronically for obtaining the size distribution of the material over a number of selected size classes.
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