Method for monitoring a characteristic of a mixture comprising particles suspended in a liquid
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United States of America Patent
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May 6, 2003
Grant Date -
N/A
app pub date -
Oct 18, 2000
filing date -
Oct 18, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The specification describes a method for monitoring a characteristic of a mixture of particles suspended in a liquid medium by generating a first interference signal by combining first and second radiation beams after the first beam traverses a reference path and the second beam traverses a path extending into the mixture, allowing the particles in the mixture to partially settle, then generating a second interference signal by the same technique as used for the first. The second interference signal is then compared to the first interference signal to determine a change in, e.g., the particle density.
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