Weighing scale with capacitor transducer
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United States of America Patent
Stats
-
Apr 26, 1983
Grant Date -
N/A
app pub date -
Sep 17, 1981
filing date -
Sep 17, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A platform type weighing scale comprising a differential capacitor transducer having one double-segment movable plate attached to an elongated weighing beam and two double-segment fixed plates attached to a U-shaped channel. The weighing beam is housed within the cavity defined by the channel. The ends of both the weighing beam and the channel are fixed to tape-pulley supported structures to produce turning moments which move the center of the weighing beam in a vertical plane substantially more than the channel is moved in the same plane. This difference in the relative position of the weighing beam and channel translates into a weight responsive change in the relative position of the fixed and movable capacitor plates to produce a weight readout.
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