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Electrical & Electronic Measurement

par: Dr. M REZKI & Pr. M AYAD
Disponible
Pages 126
Dimensions 16*23,5
Publication 2025-09-26
Éditeur —
Papier : 950.00 DA Numérique: 475.00 DA

This book is the culmination of several years of experience in teaching technical subjects within the field of Electrical Engineering—formerly known as EEEA (Electronics, Electrical Engineering, and Automation)—in both technical high schools and universities. It aligns closely with the official curriculum set by the Algerian Ministry of Higher Education and Scientific Research. The primary goal of this work is to provide “LMD or other” students with a solid foundation in measuring electrical and electronic quantities, while introducing them to fundamental measurement techniques. Another objective is to familiarize students with various measuring instruments, both analog and digital. To further support learning, we have included solved exercises and multiple-choice questions (MCQs), which offer students additional opportunities to test their understanding. As with any work, there is always room for improvement. We welcome your suggestions for future editions and are committed to refining this resource to best serve our students.

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Preface 03
Contents 05
Chapter 1 : Measurements, quantities and uncertainties 07
1. Basic concepts 08
2. Metrology concepts 08
2.1. Metrology terms 08
2.2. Equations with dimensions 10
2.3. Useful formulas 11
3. Measurement concepts 11
3.1. Accuracy of measurement 11
3.2. Error of measurement 12
3.3. Classification of errors 12
3.4. Uncertainties in indirect measurements 13
3.5. Quality of measuring instrument 13
3.6. Calibration of measuring instrument 15
3.7. Graphic symbols of measuring instrument 16
3.8. General measurement methods (classification) 17
 Exercises 19
 Solution of the exercises 21
Chapter 2 : Measurement methods 25
1. Introduction 26
2. Voltage measurements 26
2.1. Direct methods of voltages measurements
2.2. Alternative voltage measurements 28
2.3. Indirect method of voltage measurements by the opposition method
3. Current measurements 29
3.1 Direct method of currents measurements
3.2. Using the Simple Shunt 27
4. Resistance measurements 29
4.1. Resistance classification 30
4.2. Voltametric method 30
4.3. Zeroing method: Wheatstone Bridge 34
5. Impedance measurements 35
5.1. Capacity measurements 35
5.2. Inductance measurements 36
5.3. Alternative bridges 37
6. Continuous power measurements 40
6.1. Direct power measurements
6.2. Ammeter and voltmeter method 41
7. Alternative power measurements 42
7.1. Apparent power measurements 43
7.2. Active power measurements 44
7.3. Reactive power measurements 47
8. Phase shift measurements 48
8.1. Direct measurement of phase shifts with oscilloscope 48
8.2. Phase shifts measurements with Lissajous figures 50
9. Frequency and period measurements 51
9.1. Direct measurement of frequency with oscilloscope 51
9.2. Frequency measurements with Lissajous figures 51
9.3. Frequency measurement using the frequency meter method 52
 Exercises 53
 Solution of the exercises
Chapter 3 : Instruments of measurement 65
1. Introduction 66
2. Analog instruments measuring 66
2.1. Classification of deflection instruments 66
2.2. Moving-frame galvanometer 70
2.3. Magnetoelectric Ammeter structure 71
2.4. Magnetoelectric voltmeter structure 72
2.5. Operation of the electrodynamic wattmeter in alternating mode 74
3. Digital instruments measuring 79
3.1. Operating principle of a digital measuring instrument 80
3.2. Analog-to-digital converters (ADC) 81
3.3. Examples of digital measuring instruments (multimeter, oscilloscope) 84
 Exercises 88
 Solution of the exercises 90
Chapter 4 : Laboratory works 93
LW N°. 1: Resistance measurement LW N°.
2: Inductance measurement LW N°.
3: Capacitance measurement LW N°.
4: Phase shift measurement LW N°.
5: Single-phase power measurement LW N°.
6: Three-phase power measurement 94
Example of an Exam 112
Bibliographic references
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