Electrical instruments

Magneto-Optic Current Sensors for High Voltage, High Power Transmission Lines

Magneto-Optic Current Sensors for High Voltage, High Power Transmission Lines

One of the key challenges in measuring the electrical current in high voltage, high power transmission lines, is that of…

2 months ago

Digital Voltmeters: Basic Features, Operation & Applications

The digital voltmeter (DVM) displays measurement of ac or dc voltages as discrete numbers instead of a pointer deflection on…

4 months ago

Sweep Frequency Generator: Function, Features & Applications

Function & Features of a Sweep Frequency Generator A special type of signal generator which generates a sinusoidal output whose…

4 months ago

Digital Multimeter: Principle of Operation and How it is used

A Multimeter or volt-ohm-milliammeter (VOM) is an instrument used to measure current, voltage, and resistance. It can be used for…

5 months ago

Electric Wiring Testing & Inspection Instruments Requirements

In order to carry out the verification process proficiently, the person conducting the inspection and test must be in possession…

6 months ago

Megohmmeter: Function & Operation

The megohmmeter or megger is a portable deflection instrument widely used to check the insulation resistance of electrical cables and…

8 months ago

The Principle of Operation of a Digital Frequency Meter

A frequency meter/counter is a digital instrument that can measure and display the frequency of any periodic waveform. Its operation…

1 year ago

Electrical vs. Electronic Instruments

Despite the fact that both electrical and electronic instruments measure electrical quantities like voltage and current, they differ from each…

1 year ago

How to calibrate a dc voltmeter

An instrument may be calibrated by comparing its reading with that of a more accurate instrument when both are measuring…

2 years ago