EE2201 MEASUREMENTS AND INSTRUMENTATION
AIM
To provide adequate knowledge in electrical instruments and measurements techniques.
OBJECTIVES
To make the student have a clear knowledge of the basic laws governing the operation of the instruments, relevant circuits and their working. Introduction to general instrument system, error, calibration etc. Emphasis is laid on analog and digital techniques used to measure voltage, current, energy and power etc. To have an adequate knowledge of comparison methods of measurement. Elaborate discussion about storage & display devices. Exposure to various transducers and data acquisition system.
UNIT I INTRODUCTION
Functional elements of an instrument – Static and dynamic characteristics – Errors in measurement – Statistical evaluation of measurement data – Standards and calibration.
UNIT II ELECTRICAL AND ELECTRONICS INSTRUMENTS
Principle and types of analog and digital voltmeters, ammeters, multimeters – Single and three phase wattmeters and energy meters – Magnetic measurements – Determination of B-H curve and measurements of iron loss – Instrument transformers – Instruments for measurement of frequency phase.
UNIT III COMPARISON METHODS OF MEASUREMENTS
D.C & A.C potentiometers, D.C & A.C bridges, transformer ratio bridges, self-balancing bridges. Interference & screening – Multiple earth and earth loops - Electrostatic and electromagnetic interference – Grounding techniques.
UNIT IV STORAGE AND DISPLAY DEVICES9
Magnetic disk and tape – Recorders, digital plotters and printers, CRT display, digital CRO, LED, LCD & dot matrix display – Data Loggers
UNIT V TRANSDUCERS AND DATA ACQUISITION SYSTEMS
Classification of transducers – Selection of transducers – Resistive, capacitive & inductive transducers – Piezoelectric, optical and digital transducers –Elements of data acquisition system – A/D, D/A converters – Smart sensors.
TEXT BOOKS
1. E.O. Doebelin, ‘Measurement Systems – Application and Design’, Tata McGraw Hill publishing company, 2003.
2. A.K. Sawhney, ‘A Course in Electrical & Electronic Measurements & Instrumentation’, Dhanpat Rai and Co, 2004.
REFERENCES
1. A.J. Bouwens, ‘Digital Instrumentation’, Tata McGraw Hill, 1997.
2. D.V.S. Moorthy, ‘Transducers and Instrumentation’, Prentice Hall of India Pvt Ltd, 2007.
3. H.S. Kalsi, ‘Electronic Instrumentation’, Tata McGraw Hill, II Edition 2004.
4. Martin Reissland, ‘Electrical Measurements’, New Age International (P) Ltd., Delhi, 2001.
5. J. B. Gupta, ‘A Course in Electronic and Electrical Measurements’, S. K. Kataria & Sons, Delhi, 2003.