7
U2B
HBM 24.5.2000
1
Instructions for use
The U2B series of force transducers is suitable for measuring tensile forces
and pressures. They measure static and dynamic forces with great accuracy
and therefore require careful handling. Transport and installation of the de-
vices require special attention for the same reason. Transducers can be per-
manently damaged if knocked or dropped.
These force transducers are manufactured from stainless steel and are suit-
able for use under harsh environmental conditions and severe operating
constraints. They are maintenance free and can even be installed in places
that are hard to reach. Their measuring signals can be transmitted to remote
measuring equipment.
The perfect seal that protects the sensitive strain gauge applications has to be
maintained by the housing in all conditions. The base of the housing must
therefore be treated with special care, since it is very thin.
The permitted limits for mechanical, thermal and electrical loadings are given
in the Technical Data. Please take these points into account whenever plan-
ning for measurement arrangements and when installing or operating the
equipment.
2
Structure and operating mode
2.1
Measuring device
The measuring device is a stainless steel measuring spring to which strain
gauges (SG) are applied. The measuring device simultaneously forms the up-
per part pf the transducer housing (Fig. 2.1). The SGs are arranged so that
four of them are stretched and the other four are compresses when a force is
applied to the transducer. The transducer circuit contains correcting and com-
pensating resistors, in order to reject undesirable influences on the zero signal
and sensitivity.
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SUNSTAR自动化 http://www.sensor-ic.com/ TEL: 0755-83376489 FAX:0755-83376182 E-MAIL:[email protected]
