Principles of Electrical Measurements |
Contents
CHAPTER | 1 |
General Construction | 14 |
ELECTROSTATIC INSTRUMENTS | 24 |
Copyright | |
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accuracy adjustment alternating current alternating voltage ammeter ampere-hour amplifier amplitude anode current anode voltage applied voltage balance beam bridge C₁ C₂ calibrated capacitance capacitor cathode circuit compensation condenser connected constant core current transformer curve damping deflecting plates detector direct current disc earth effect electrical electron electrostatic equation flux density frequency galvanometer grid harmonic heterodyne high-voltage I₁ impedance indication input instrument insulated kc/s load magnetic field magnetising measured meter method moving-coil Mumetal mutual inductance negative obtained ohms operating oscillator oscillograph phase-angle positive potential potential divider potentiometer power-factor proportional R₁ R₂ radio frequencies range ratio arms reactance reading rectifier resistance resonance screen search coil secondary sensitivity shown in Fig shunt standard suitable supply switch symmetrical components temperature torque triode tube V₁ V₂ valve voltmeter variable voltage coil wattmeter waveform wavemeter Wheatstone bridge winding zero