Siemens WiPS-200 Series User Manual Page 156

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Page 165
10/31/2008
Siemens AMD
Confidential - for Siemens authorized use only.
Boisvert/Dronette/Jenkins/Sonnier
Level_Weighing_Seminar.ppt
Belt Scale Theory
Direction of Stretch
Weigh bridge operation
Strain gauge theory
A thin wire is coiled so that as the
metal it is attached to is stretched
the wire is made longer and
thinner
The electrical resistance of the
wire is related to the cross-
sectional area of the wire
The change in resistance is
proportional to the amount the
load cell metal is flexed
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