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Automatic testing system for flat coils, typically used in antennae or transponders, involves placing the coils in a magnetic field so that detected field changes caused can be related to coil properties
Automatic testing system for flat coils, typically used in antennae or transponders, involves placing the coils in a magnetic field so that detected field changes caused can be related to coil properties
A signal generator (01) and antenna are used to produce an electromagnetic field of appropriate frequency into which a coil (06) that is to be tested is placed. A second antenna is connected to a signal detector (04) in order to measure changes in the magnetic field caused by the test coil. The test can be repeated for a number of frequencies.
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