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A Direct Digitizer suitable for Giant magneto-resistive (GMR) sensors is proposed in this paper. The proffered digitizer integrates a GMR sensor, in the form of a full-bridge, with a novel circuit based on enhanced dual-slope technique and obtains a linear digital indication of the magnetic field being measured. The scheme does not use a separate ADC for digitization. A detailed mathematical methodology...
A novel, floating wiper, inductive voltage divider (IVD) type displacement transducer is presented here. A self balancing signal conditioning circuit, proposed herein, operates on an IVD with a floating wiper and provides an output that is proportional to the displacement (can be linear or angular) of the wiper. The output is made independent of the coupling capacitor that would arise due to the air...
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