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Power Systems

Quadrature Amplitude Modulation (QAM): What is it?

What is QAM (Quadrature Amplitude Modulation)? QAM (Quadrature Amplitude Modulation) is defined as the modulation technique which is the combination of phase and amplitude modulation of a carrier wave into a single channel. In other words, QAM transmits information by changing both the amplitude and

By Electrical4u 03/27, 2024
Power Systems

Relaxation Oscillator: What is it? (And How Does it Work)

What is a Relaxation Oscillator? A relaxation oscillator is defined as a non-linear electronic oscillator circuit that can generate a non-sinusoidal repetitive output signal. A relaxation oscillator was invented by Henri Abraham and Eugene Bloch using a vacuum tube during World War 1. Oscillators ar

By Electrical4u 03/27, 2024
Power Systems

Frequency Limitation of an Oscilloscope

Oscilloscopes are an incredibly useful tool of the electronics world after a multimeter . Without a scope, it’s quite difficult to know what is happening in a circuit. But this type of test equipment has its own limitation. To overcome this limitation, one must understand the weakest links in the sy

By Electrical4u 03/27, 2024
Power Systems

Measurement of Voltage Current and Frequency by Oscilloscope

Normally, an oscilloscope is an important tool in an electrical field which is used to display the graph of an electrical signal as it varies with respect to time. But some of the scopes have additional features apart from their fundamental use. Many oscilloscopes have the measurement tool that help

By Electrical4u 03/27, 2024
Power Systems

Double Beam Oscilloscope

The dual beam oscilloscope emits two electron beams that are displayed simultaneously on a single scope, which could be individually or jointly controlled. The construction and working of the dual beam oscilloscope are completely different from dual trace oscilloscope. The tubes are more complicated

By Electrical4u 03/27, 2024
Power Systems

Sampling Oscilloscope

Before discussing sampling oscilloscope , we must know the basic principle and functioning of an ordinary oscilloscope. It is an instrument which receives one or more electrical signals and then produces the waveform on the screen simultaneously. The sampling oscilloscope is an advanced version of t

By Electrical4u 03/27, 2024
Power Systems

Digital Storage Oscilloscope

A digital oscilloscope is an instrument which stores a digital copy of the waveform in the digital memory which it analyses further using digital signal processing techniques rather than using analogue techniques. It captures the non-repetitive signals and displays it consciously until the device ge

By Electrical4u 03/27, 2024
Power Systems

Lissajous Patterns of CRO or Cathode Ray Oscilloscope

Cathode Ray Oscilloscope (CRO) is very important electronic device. CRO is very useful to analyze the voltage wave form of different signals. The main part of CRO is CRT ( Cathode Ray Tube ). A simple CRT is shown in figure below- When both pairs of the deflection plates (horizontal deflection plate

By Electrical4u 03/27, 2024
Power Systems

Cathode Ray Oscilloscope | CRO

What is a Cathode Ray Oscilloscope? A Cathode Ray Oscilloscope (CRO) is an instrument generally used in a laboratory to display, measure and analyze various waveforms of electrical circuits . A cathode ray oscilloscope is a very fast X-Y plotter that can display an input signal versus time or anothe

By Electrical4u 03/27, 2024
Power Systems

Strain Gauge: Working Principle & Diagram

What is a Strain Gauge A strain gauge is a resistor used to measure strain on an object. When an external force is applied on an object, due to which there is a deformation occurs in the shape of the object. This deformation in the shape is both compressive or tensile is called strain, and it is mea

By Electrical4u 03/27, 2024
Power Systems

Oscillator Transducer: What is it? (Advantages & Disadvantages)

What is an Oscillator Transducer An oscillator transducer is a type of transducer that can be used to measure force, pressure, or displacement by converting it a voltage, which can then be measured by a voltmeter. Oscillator transducer are mostly used as secondary transducers, with their output cali

By Electrical4u 03/27, 2024
Power Systems

Inductive Transducers

Inductive transducers work on the principle of inductance change due to any appreciable change in the quantity to be measured i.e. measured. For example, LVDT , a kind of inductive transducers, measures displacement in terms of voltage difference between its two secondary voltages. Secondary voltage

By Electrical4u 03/27, 2024

Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

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Quadrature Amplitude Modulation (QAM): What is it?

Relaxation Oscillator: What is it? (And How Does it Work)

Frequency Limitation of an Oscilloscope

Measurement of Voltage Current and Frequency by Oscilloscope

Double Beam Oscilloscope

Sampling Oscilloscope

Digital Storage Oscilloscope

Lissajous Patterns of CRO or Cathode Ray Oscilloscope

Cathode Ray Oscilloscope | CRO

Strain Gauge: Working Principle & Diagram

Oscillator Transducer: What is it? (Advantages & Disadvantages)

Inductive Transducers

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