Digital Measurement and Instrumentation
Teacher
Dr. Rajendra Kumar Khadanga
Category
Core Courses
Course Attendees
Still no participant
Course Reviews
Still no reviews
Course Name : Digital Measurement and Instrumentation
Code(Credit) : CUTM1056(2-1-0)
Course Objectives
- To identify and analyze the factors affecting the performance of Digital measuring instruments.
- To explain the operation, performance, and application of Digital Measuring Instruments.
- To choose appropriate digital instruments for the measurement of frequency, time period, harmonics, voltage, current and other electrical quantity.
Course Outcomes
| COs | Course outcomes | Mapping COs with POs (High-3, Medium-2, Low-1) |
| CO1 | Able to gain knowledge on Digital circuit analysis. |
PO1(3), PO2(2) |
| CO2 | Able to solve the problem related to digital instruments. |
PO1(2), PO2(3) |
| CO3 | Use of software/design tools to design the recent and the conventional digital instruments. |
PO5 (3) |
Course Syllabus
Module I (6 hrs)
Digital Instrument
Need for digital instruments, Advantages of digital instruments, Essentials of digital instrument, Performance characteristics of digital instrument.
Philosophy of digital measurements
Time Measurement Techniques: Error analysis in digital measurement, Measurement of time interval between two events, Error in time interval measurement, Vernier technique for small time measurement, Measurement of time interval with constraints, Measurement of periodic time, phase, Quality factor of ringing circuit, Decibel meter, Software controlled measurement.
Practice
- Absolute and relative error analysis of digital measurement using Matlab
- Simulation of Quality Factor of ringing circuit
Module II (5 hrs)
Digital frequency measurement techniques
Measurement of frequency, Ratio of two frequencies, Product of two frequencies, High frequency, average Frequency difference, Deviation of power frequency, Peak frequency. Fast low-frequency measurement, Digital Tachometer.
Practice
3.Addition and product of different frequencies using Matlab
4. Simulation of digital tachometer using Matlab
Module III (5 hrs)
Digitally Programmable Circuits
Single mode switching, Group mode switching, Resistors, Potentiometers, Amplifiers, Schmitt trigger, Dual polarity gain amplifiers. Programmable gain amplifier with dual output, Two stage programming, Programmable Biquads.
Practice:
5. Analysis of switching using Matlab
6. Simulation of programmable biquads using Matlab
Module IV (4 hrs)
Digital to Analog Converters
Output Input relation, DACs derived from programmable gain amplifiers, Weighted-resistor DAC, Weighted current DAC, Weighted reference voltage DAC, Ladder DAC, Switches.
Practice:
7. Simulation of programmable gain amplifier using Matlab
8. Simulation of DAC using Matlab
Module V (5 hrs)
Digital Voltage Measurement Techniques
Sampling theorem, Time-division multiplexing, Quantization, Indirect type A/D converters, Direct type A/D converters, Input circuitry of a digital voltmeter.
Practice:
9. Simulation of Digital voltmeter using Matlab
10. Analysis and simulation of digital multi-meter.
Module VI (4 hrs)
Digital Recording Systems
Input Conditioning Equipment, Digitizer, Multiplexer, Programme Pinboard, Linearizer, Digital Clock, Limit Detectors, Output Devices
Practice:
11. Data fetching using controllers
12. Simulation of digital clock using Matlab
Module VII: (4 hrs)
Signal Generator, Analyzers and Oscilloscopes:
Function Generator, Pulse Generator, RF Signal Generator, Harmonic Distortion Analyzer, Spectrum Analyzer, Digital Storage CROs
Practice:
13. To study block wise Construction of a Function Generator
14. Measure Voltage, Frequency, Phase and Modulation Index (Trapezoidal Method) using CRO
15. Demonstrate features of Digital Storage Oscilloscope
16. Measure unknown Frequency using Lissajous Patterns
Text Books:
- T. S. Rathore- Digital Measurement Techniques, Alpha Science International Ltd
- David A. Bell - Electronic Instrumentation and Measurements, Oxford Univ. Press, 1997
- A. K. Sawhney – A Course in Electrical and Electronic Measurements and Instrumentation, Dhanpat Rai & Co
Reference Books:
- Prithwiraj Purkait- Electrical and Electronics Measurement and Instrumentation, MC Graw Hill Publishers
- H. S. Kalsi- Electronic Instrumentation, Tata McGraw-Hill, New Delhi, 2010
- R. K. Rajput- Electrical & Electronic measurement and Instrumentation, S. Chand Publication
- K. Lal Kishore- Electronic Measurements and Instrumentation, Pearson Education 2010
Session Plan
Session 1
Time Measurement Techniques: Error analysis in digital measurement, Measurement of time interval between two events, Error in time interval measurement.
Session 2
Vernier technique for small time measurement, Measurement of time interval with constraints
Session 3
Measurement of periodic time, phase, Quality factor of ringing circuit
Session 4
Decibel meter, Software controlled measurement
Session 5
LAB:Performimg the error analysis of digital measurement using Matlab
Session 6
LAB:Performing the Simulation of Quality Factor of ringing circuit in Matlab
Session 7
LAB:Performing the Simulation of Quality Factor of ringing circuit in Matlab
Session 8
Measurement of frequency, Ratio of two frequencies, Product of two frequencies
Session 9
LAB: To perform the addition and product of different frequencies using Matlab
Session 10
High frequency, average Frequency difference, Deviation of power frequency, Peak frequency,Fast low-frequency measurement
Session 11
Digital Tachometer
LAB:Simulation of digital tachometer using Matlab
Session 12
Single mode switching, Group mode switching
LAB:Analysis of switching using Matlab
Session 13
Resistors, Potentiometers, Amplifiers
Session 14
Schmitt trigger, Dual polarity gain amplifiers
Video: https://youtu.be/jkM4dHCaNqk
Video: https://youtu.be/Nrp8OgQLAlw
Session 15
Programmable gain amplifier with dual output, Two stage programming
Session 16
Programmable Biquads
LAB:Simulation of programmable biquads using Matlab
Session 17
Digital to Analog Converters:Output Input relation, DACs derived from programmable gain amplifiers
Video: https://youtu.be/tZR7hLJx6Ms
LAB:Simulation of programmable gain amplifier using Matlab
Session 18
Weighted-resistor DAC, Weighted current DAC
Session 19
Weighted reference voltage DAC, Ladder DAC, Switches
Session 20
LAB:Simulation of DAC using Matlab
Session 21
Digital Voltage Measurement Techniques:Sampling theorem, Time-division multiplexing
Session 22
Quantization, Indirect type A/D converters
Session 23
Direct type A/D converters
Session 24
Input circuitry of a digital voltmeter
LAB:Simulation of Digital voltmeter using Matlab
Session 26
Need for digital instruments, Advantages of digital instruments, Essentials of digital instrument,Performance characteristics of digital instrument
Session 28
Programme Pinboard, Linearizer, Digital Clock
LAB:Simulation of digital clock using Matlab
Session 29
Limit Detectors, Output Devices
LAB:Data fetching using controllers
Session 30
Function Generator
LAB:To study block wise Construction of a Function Generator
Session 31
Pulse Generator, RF Signal Generator
Session 32
Harmonic Distortion Analyzer, Spectrum Analyzer
LAB:Measure unknown Frequency using Lissajous Patterns
Session 33
Digital Storage CROs
LAB: 1)Measure Voltage, Frequency, Phase and Modulation Index (Trapezoidal Method) using CRO
2)Demonstrate features of Digital Storage Oscilloscope
Case Studies
Case Studies
Our Main Teachers