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Instrumentation

Volt-Ohm-Milliammeter (VOM): Definition, Functions & Types

Definition: A common and simple multimeter used in electronic circuits is the volt-ohm-milliammeter or VOM. A VOM is … Read More

Analog Meter Movement | D’Arsonval & Iron Vane Meter Movement

A common type of meter movement measures current and voltage. It is the D’Arsonval movement, or stationary magnet, … Read More

Analog Multimeter Working Principle

An analog multimeter is a meter that can measure two or more electrical properties and display the measured … Read More

Electronic Voltmeter Working and Block Diagram

An analog electronic voltmeter uses an electronic amplifier to improve the performance of an electromechanical voltmeter. For example, … Read More

Accuracy and Precision in Measurement | Difference between Accuracy and Precision

Analog Meter Accuracy The accuracy of all deflection instruments is specified by the manufacturer as a percentage of … Read More

Maxwell Inductance Bridge Circuit

For measurement of inductance, the Maxwell Bridge shown in figure 1 can be employed. It is seen that the … Read More

Series Resistance Capacitance Bridge Circuit

One disadvantage of simple Capacitance Bridge is that perfect balance of the bridge is obtained only when Cs … Read More

Capacitance Bridge Working Principle

AC bridges are used for measurement of inductances and capacitances. All AC bridge circuits are based on Wheatstone … Read More

Phase Rotation Meter | Phase Sequence Indicator

A phase rotation meter, as shown in figure 1, is a device used to determine the phase order … Read More

Digital Multimeter Working Principle

    Fig.1: Digital Multimeter There are two main types of multimeters.  One of the first and oldest multimeters … Read More

Dynamometer Type Wattmeter Working Principle | Electrodynamometer

In a dc circuit, the power supplied to a load can be determined by measuring the load voltage … Read More

Megohmmeter Working Principle | Megger Working Principle

  A high voltage source is required to pass a measurable current through such resistances. Thus, the megger … Read More

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  • Basics
    • Basic Electrical
    • Batteries
    • Circuits with Matlab
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    • Digital Circuits
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    • Electrical Q&A
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    • Elementary Physics I
    • Elementary Physics II
  • Electrical Concepts
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    • Signals
    • Renewable Energy
    • PLC
  • Control
    • Control Systems
    • Control with Matlab
    • Motor Control
  • Power Systems
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    • DC Machines
    • Induction Motor
    • Synchronous Machines
    • Transformer
  • Articles
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