Methods of detecting change in object and apparatuses for performing the methods
Abstract:
A detecting apparatus includes a first resonator configured to generate a first resonance signal based on power output from a power supply in response to an object changing within a range of a field of the first resonator, a switch configured to connect the first resonator to the power supply in response to a control signal, and a controller configured to sample a value of an envelope of the first resonance signal to detect a change in the object.
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