B.Tech Physics

PH 304                         Measurement Techniques                       2-0-2-6

Syllabus: Sensors: resistive, capacitative, inductive, electromagnetic, thermoelectric, elastic, piezoelectric, piezoresistive, photosensitive and electrochemical sensors; interfacing sensors and data acquisition using serial and parallel ports. Low Pressure: Rotary, sorption, oil diffusion, turbo molecular, getter and cryo pumps; Mcleod, thermoelectric (thermocouple, thermister and pirani), penning, hot cathode and Bayard Alpert gauges; partial pressure measurement; leak detection; gas flow through pipes and apertures; effective pump speed; vacuum components. Low Temperature: gas liquifiers; Cryo-fluid baths; liquid He cryostat design; closed cycle He refrigerator; low temperature measurement. Analytical Instruments: X-ray diffractometer; Spectrophotometers; FT-IR; DSC; lock-in amplifier; spectrum analyzer, fluorescence and Raman spectrometer, scanning electron microscope, atomic force microscope, interferometers. Laboratory component: physical parameter measurement using different sensors; Low pressure generation and measurement; Calibration of secondary gauges; Cryostat design; CCR operation; data collection from analytical instruments in the department.

Texts:

1. D. Helfrick and W. D. Cooper, Modern Electronic Instrumentation and Measurement Techniques, Prentice-Hall of India, 1996.
2. P. Bentley, Principles of Measurement Systems, Longman, 2000.

References:

1. K. White, Experimental Techniques in Low Temperature Physics, Clarendon, 1993.
2. Roth, Vacuum Technology, Elsevier, 1990.
3. A. Skoog, F. J. Holler and T. A. Nieman, Principles of Instrumental Analysis, Saunders, 1998.