Electrical Measurement and Instrumentation

 My Notes according to syllabus and GATE

EMI Copy 1

EMI Copy 2

Assignment of all 5 Units

Assignment in pdf file

Assignment in word file

Syllabus

EMI Syllabus AKTU

Reference Notes 

Notes same as my notes (above) in different handwriting

Reference Notes MADE EASY

Reference Notes Typed - Some part may not match from the syllabus

Typed Notes

Previous Years Questions Papers (AKTU)

Since syllabus changed so some questions may not be relevant.

KEE-302 2021-22

NEE-302 2019-20

KEE-302 2019-20

REE-302 2019-20

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PMMC, MI, EMMC or EDM, ESV Instruments :: Measurement

Download the notes (in pdf file) from link below:

PMMC, MI, EMMC, ESV Instruments

Download the same notes in small file size from 2nd link:

PMMC, MI, EMMC, ESV Instruments, Link 2

This notes consist of the following topics:

Permanent Magnet Moving Coil (PMMC) Instruments
1. Diagram
2. Construction
3. Equation of Torque, derivation
4. Types of control
5. Sensitivity
6. Disadvantage
7. Advantage
8. Errors
9.Explanation of Advantage
10. Application
11. Extension range of Ammeter
12.Properties of shunt
13.Extension range of voltmeter
14. Numerical and objective questions

Moving Iron (MI) Instrument
1. Diagram
2. Derivation of Torque and Energy stored
3. Controlling methods and its torque derivation
4.Advantage and Disadvantage
5. Numericals
6. Extension range of MI as Ammeter
7. Extension range of MI Voltmeter

EMMC or EDM (Electro-Magnet Moving Coil) 
1. Working Principle
2. Derivation of Torque equation
3. Diagram
4. EDM circuit for Ammeter and Voltmeter
5. Equations of energy stored in magnetic coil
6. Types of control
          a) for Ammeter
          b) for Voltmeter
7. Points (Advantages and Disadvantages)
8. EMMC in case of A.C. Supply
          a) Torque Equations
9. Numerical

Electrostatic Voltmeter (ESV)
1. Working Principles
2. Derivation of stored energy
          a) Plate moving linear, scale non-linear
          b) Movable circular plate
3. Points (Advantages and Disadvantages)
4. Types of ESV
5. Extension range of ESV
          a) Potentiometer method
          b) By connecting series capacitor (Case I and Case II)
6. Numerical

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Secondary Instruments, Deflecting Torque, Controlling Torque, Damping Torque ::- Measurement

Download the notes from below link in pdf :

Measurement - Part 2

Download the same notes in low file size from 2nd link :

Measurement - Part 2, Link 2

This Notes consist of the following Topics in a very simplified and detailed way, along with many numericals:

1. Secondary Instruments
          a) Indicating type Instruments
          b) Measuring type Instruments
          c) Integrating Instruments
2. Essential components in Instruments
          a) Deflecting Torque
          b) Controlling Torque
          c) Damping Torque
3. Ways to obtain Deflecting Torques
          a) Magnetic Field Effect
          b) Electric Field Effect
          c) Electromagnetic Field of attraction or repulsion
          d) Electromagnetic Induction Effect
          e) Heating Effect or Thermal Effect
          f) Chemical Effect
          g) Hall Effect
          h)Piezo Electric Effect
4. Reading of Rectifier Type Instrument
5. Controlling Torque
          a) Spring Control Technique
          b) Gravity Control Technique
6. Damping Torque
          a) Air Friction
          b) Fluid Friction
          c) Eddy Current\
          d) Electromagnetic
7. Mechanism of Producing Deflecting torque

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