Structure And Mode Of Operation - HBM WI/5mm-T Montageanleitung

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WI
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Structure and mode of operation

The transducers consist of a ferromagnetic core and a coil tube, on which are
located two measuring coils arranged in tandem, together forming an
inductive half bridge.
The ferromagnetic core is mounted on a non magnetic rod and located in the
center of the coil system. Axial displacements of the core lead to an opposite
change in the impedance of the measuring coils.
A ferrite tube acts as an enclosure surrounding the coil system and at the
same time forms the magnetic shielding. Under a plastic molding are resistors
with which to adjust the sensitivity of the transducers and which also form the
extension to the full bridge.
In the probe versions there are guideways made of antifriction metal on the
core rod, giving access to the coil tube. A spiral spring pushes the probe pin
forward against the measurement object. On the tip is an measurement insert
according to DIN 878 with a threaded pin M2.5 and a 1/8" carbide ball.
NOTE
The measurement insert is locked using a medium strength
threadlocker.
HBM A1028 3.1 de/en/Fr