Describe the operation of an inductive prox switch.
What will be an ideal response?
When a metal part enters the magnetic field of the inductive prox, it generates
eddy currents in the part and this takes energy away from the magnetic field
created by the oscillator in the prox. The eddy currents and their induced magnetic
fields draw enough power from the oscillator that eventually it can no longer
create an oscillating field. A separate unit in the prox known as the Trigger Unit
looks for the oscillation to die down to a certain level and it then activates the
output(s) of the prox accordingly
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