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<p>The strain gauge operates on the principle that a tensioned wire, when plucked, vibrates at its natural harmonic frequency, and by measuring that frequency, we can calculate the strain in the wire. The gauge is constructed so that a wire is held in tension ...
<p>Spot-weldable strain gauges are used with strain gauge sensors and a vibrating wire indicator or data logger to monitor strain in steel members. The strain gauge, with its tensioned wire inside, is welded to the structural member, so that an increase in ...