Wire
strain gauges are devices that are of utmost importance in any company with
lots of wires. Evidently, that would include each and every company
irrespective of its background. These devices measure strain on a wire by
testing the wire in a certain way. Vibrating wire strain gauges are used in
geotechnical applications as well as in civil engineering. It contains a wire
that is stretched and tensioned wire that is vibrating. Resonant frequency of
the wire is calculated upon subjecting the wire to tension and the increase in
the frequency is noted. The increase in the resonant frequency is then referred
to for inferring the capacity of the wire to stretch.
Another
method to apply the vibrating kind ofgauges for wire strains is to initiate oscillation of the wire in order to
note the frequency. This is achieved by passing current from a coil that is
kept very near, but not touching, to the wire. There is a magnetic field
generated due to passing of current from the coil because of which the wire
exhibits to and fro movement in response to attraction and repulsion nature of
the magnetic field.
The
result of these gauges is very accurate even under tough surroundings and has
been tested for maximum performance. The frequency obtained from the procedure
above is not affected by noise waves under usual conditions. But the foremost
advantage for geotechnical field is that due to these devices, frequency may be
transmitted to far away distances without losing any signal during
transmission.

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