JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Outcomes

At the end of the course, student will be able to:

• 1. Understand the concepts of errors in measurements, statistical analysis of data, regression analysis, correlation and estimation of uncertainty.
• 2. Understand conceptual development of zero, first and second order systems.
• 3. Describe the working principles in the measurement of field and derived quantities.
• 4. Analyze sensing requirements for measurement of thermo-physical properties, radiation properties of surfaces, and vibration.

UNIT - I

Introduction – Generalized measurement system – standards – calibration – Dynamic measurements – System response – Distortion – Impedance matching – Fourier analysis – Experiment planning – causes and types of errors – Error analysis – Uncertainty analysis – Evaluation – Statistical analysis of experimental data – Probability distribution

UNIT - II

Data Acquisition – Data transmission – data storage and display Variable resistance transducers, capacitive transducers, piezoelectric transducers, photoconductive transducers, photovoltaic cells, ionization transducers, Hall effect transducers

UNIT - III

Dynamic response considerations, Bridgman gauge, McLeod gauge, Pirani thermal conductivity gauge, Knudsen gauge, Alphatron.

UNIT - IV

Flow measurement by drag effects; hot-wire anemometers, magnetic flow meters, flow visualization methods, interferometer, Laser Doppler anemometer. Temperature measurement by mechanical effect, temperature measurement by radiation, transient response of thermal systems, thermocouple compensation, temperature measurements in high- speed flow.

UNIT - V

Thermal conductivity measurement of solids, liquids, and gases, measurement of gas diffusion, convection heat transfer measurements, humidity measurements, heat-flux meters. Detection of thermal radiation, measurement of emissivity, reflectivity and transmissivity, solar radiation measurement.

TEXT BOOKS:

• 1. J. P. Holman, Experimental Methods for Engineers, 7th Edition, Tata Mc Graw-Hill 2001.
• 2. T.G. Beckwith, J.H. Lienhard V, R. D. Marngoni, Mechanical Measurements, 5th Edition, Pearson Education, 2010.
• 3. E.O. Doebelin, Measurement systems, Application and Design, 5th Edition, Tata McGraw-Hill, 2008 M.Tech, I Year, I Sem