4
Structure and mode of operation
S2M
4.1
Measuring body
The measuring body is an aluminum bending beam on
which strain gauges (SG) are installed. The SG are
arranged so that two are stretched and the other two
compressed when a force acts on the transducer.
4.2
Strain gauge covering agent
To protect the SG, the S2M force transducers are potted
with a plastic material at an appropriate place. This pro
cedure offers the SG high protection against environ
mental influences. To retain the protective capacity and
ensure permanent functionality, the force transducer pot
ting material must not become damaged.
Fig. 4.1
SG installation protection
4.3
Disturbance variables
Torsion, bending and lateral loads are disturbance vari
ables and therefore to be avoided.
A3592-1.3 HBM: public
Structure and mode of operation
Potting
material
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