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In metrology eddy current non-contact transducer have been widely used for measurement of position, displacement, cracks, vibration, proximity and alignment, as well as parts sorting applications over the past years. By reason of further developments of front end sensor elements as well as electronics, new application areas of eddy current sensors are technically feasible. In this paper lately achieved...
For the rod shape measurement of hot rolled round steel bars (rods) the high frequency eddy current method is especially well suited as it requires no contact point and is not limited to below the Curie temperature. Defects of the rod's shape can be detected by measuring the impedance spectrum of the RLC-oscillator. In the first laboratory setup an Agilent impedance analyser was used for initial tests...
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