Practical PMMC Movement

Practical PMMC Movement: The basic Practical PMMC Movement (also called a D'Arsonval movement) offers the largest magnet in a given space, in the form of a horse-shoe, and is used…

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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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Indicators and Display Devices Articles

Indicators and Display Devices Articles: Basic Meter Movement : Basic Meter Movement – The action of the most commonly dc meter is based on the fundamental princi­ple of the motor.…

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AC Voltmeter using Rectifiers

AC Voltmeter using Rectifiers: AC Voltmeter using Rectifiers - Rectifier type instruments generally use a PMMC movement along with a rectifier arrangement. Silicon diodes are preferred because of their low…

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Electrodynamometer Instrument

Electrodynamometer Instrument: Electrodynamometer Instrument - The D'Arsonval movement responds to the average or dc value of the current flowing through the coil. If ac current is sought to be measured,…

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Electronic Instrumentation Articles

Electronic Instrumentation Articles: This Electronic Instrumentation Articles which includes the following topics: Introduction to Electronics Instrumentation Static Characteristics of Measuring Instruments Errors in Measurement Types of Static Error and Sources…

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