Voltmeters and Multimeters Articles

Voltmeters and Multimeters Articles: AC Voltmeter using Half wave Rectifier : AC Voltmeter using Half wave Rectifier – If a diode D1 is added to the dc voltmeter, as shown…

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Digital Voltmeters Articles

Digital Voltmeters Articles: Continuous Balance DVM : Continuous Balance DVM – The basic block diagram of a servo balancing potentiometer type DVM is shown in Fig. 5.15. The input voltage…

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Peak Reading Voltmeter Circuit

Peak Reading Voltmeter Circuit: Sometimes it is enough if the Peak Reading Voltmeter Circuit of an impulse voltage wave is measured; its waveshape might already be known or fixed by…

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Peak Reading AC Voltmeter Circuit

Peak Reading AC Voltmeter Circuit: Peak Reading AC Voltmeter Circuit : When a capacitor is connected to a sinusoidal voltage source, the charging current where V is the rms value…

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Electrostatic Voltmeters

Electrostatic Voltmeters: In Electrostatic Voltmeters fields, the attractive force between the electrodes of a parallel plate capacitor is given by where, V = applied voltage between plates, C = capacitance…

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Series Capacitance Voltmeter

Series Capacitance Voltmeter: To avoid the drawbacks pointed out earlier, a Series Capacitance Voltmeter is used instead of a resistor for a.c. high voltage measurements. The schematic diagram is shown…

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Series Impedance Voltmeter

Series Impedance Voltmeter: For power frequency a.c. measurements the Series Impedance Voltmeter may be a pure resistance or a reactance. Since resistances involve power losses, often a capacitor is preferred…

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Generating Voltmeter Principle and Construction

Generating Voltmeter Principle and Construction: High voltage measuring devices employ generating principle when source loading is prohibited (as with Van de Graaff generators, etc.) or when direct connection to the…

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