Functional Elements of a Measuring Instrument – Static and Dynamic Characteristics – Standards and Calibration – Galvanometers: D’Arsonval and Vibration Galvanometer – Principle, Construction, Operation and Comparison of Moving Coil, Moving Iron Meters – Extension of Range and Calibration of Voltmeter and Ammeter, Digital voltmeters
Electrodynamometer type Wattmeter - LPF wattmeter - Phantom loading - Induction type Energy meter - Magnetic measurements - Determination of B-H curve and measurement ofiron loss
DC Potentiometer: Basic circuit, Standardization - Laboratory type (Crompton’s) - AC potentiometer- Drysdale (Polar) type - Gall-Tinsley (Coordinate) type - Limitations andapplications - Instrument Transformer: CT and PT construction and operation
Measurement of resistance: DC Bridges: Kelvin double bridge, Wheatstone bridge, Direct deflection method and Mega ohm Bridge method – Megger Measurement of impedance: AC Bridges: Maxwell’s Bridge, Wein bridge, Schering bridge,Anderson bridge, Digital multimeter
Magnetic disk and tape - Recorders, digital plotters and printers, CRT display, DSO, LED, LCD and dot matrix display – case study using design thinking - Data Logger and Function Generators.
Reference Book:
1. Gupta, J.B., “A Course in Electronic and Electrical Measurements and Instrumentation”, S.K. Kataria & Sons, New Delhi, 2020. 2. Singh, S. K. “Industrial Instrumentation and Control”, Tata McGraw Hill, New Delhi, 2 nd Edition,2016. 3. Martin U. Reissland, “Electrical Measurement – Fundamental Concepts and Applications”, New Age International Private Limited, 2015. 4. Kalsi, H. S. “Electronic Instrumentation”, Tata McGraw-Hill, New Delhi, 4 th Edition, 2019. 5. Manabendra Bhuyan, “Intelligent Instrumentation: Principles and Applications”, CRC Press, 2017.
Text Book:
1. Golding, E. W., Widdis, F. C., “Electrical Measurements & Measuring Instruments”, A. H. Wheeler & Co., 2016. 2. Sawhney A K., “Course in Electrical, Electronic Measurements and Instrumentation”, Shree Hari Publications, 2021. .
