6
DC and AC Bridges
Introduction • DC bridges • Wheatstone bridge • Kelvin bridge • Strain gauge bridge circuit • AC bridges • Maxwell bridge • Hay bridge • Schering bridge • Wien bridge • Anderson bridge • Resonance bridge • Similar angle bridge • Radio frequency bridge (substitution technique) • Wagner's ground connection • Twin-T null network • Bridged-T network • Detectors for AC bridges • Phasor diagrams • Recorders • Strip-chart recorders • Pen-driving mechanism • Other features • Servorecorders • Servobalancing potentiometric recorder • Characteristics of typical servorecorders • Oscillographic recorders • Magnetic tape recorders • Recorders (contd.) • Galvanometer oscillographs • Summary
6.1 INTRODUCTION
To measure parameters R, L, ...
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