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Pune University - Sem - II : Instrumentation, April 2010 (Old Course)

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Total No. of Questions : 5] P1164 [Total No. of Pages : 2 [3729]-23 M.Sc. - I ELECTRONIC SCIENCE EL2 UOT04 : Instrumentation (Old Course) (Semester - II) Time : 3 Hours] [Max. Marks : 80 Instructions to the candidates: 1) 2) 3) All questions are compulsory. Figures to the right indicate full marks. Draw neat diagrams wherever necessary. Q1) Attempt any FOUR of the following : [4 4 = 16] a) Define accuracy and precision for a measurement system. State its importance in applications of the measurement system. b) With neat diagram explain variable reluctance type pressure sensor. c) What are actuators? Explain with example solenoid valve as an actuator. d) Explain FFT realization used for digital filter design. List various window functions used in it. e) What is XRD? Where it is used? State principle of working of it. Q2) Attempt any FOUR of the following : [4 4 = 16] a) Explain ratiometric conversion for strain gauge transducer used in wheatstone bridge network. b) Classify flow meters. Explain with diagram the construction and working of turbine type flow meter. c) State the different cardiograms in biomedical measurements. With block diagram explain the working of ECG machine. d) A platinum resistance thermometer has a resistance of 120 ohm at 20 C. Find i) The resistance at 60 C. ii) The temperature if resistance is 100 ohm. Given :- for platinum is 0.0039/ C. e) Design Butterworth second order low-pass filter for FC = 10 kHz, if C = 0.01 F. P.T.O. 3 Q3) Attempt any FOUR of the following : [4 4 = 16] a) How percentage content of a product is calculated? Explain oven drying method to determine moisture in a sample of a produce. b) What is a pH? Explain potentiometric method to estimate pH of a solution. c) Explain with block diagram working of direct reading vector impedence meter. d) Explain in brief instrumental methods of chemical analysis. e) What is the concept of 3 wire lead compensation in RTD? How the self heating effect in it is reduced? Q4) Attempt any FOUR of the following : [4 4 = 16] a) What is green house? State parameters of green house. Explain instrumentation technique to control light in it. b) Explain importance of guarding and shielding in instrumentation system. c) Draw the circuit diagram and explain operation of basic digital panel meter. d) State principle and working of flame photometer. Give its limitations. e) Draw the basic constructional diagram of LVDT. Explain it as a displacement sensor. Q5) Attempt any FOUR of the following : [4 4 = 16] a) Define transducer. What are basic requirements of a transducer? b) What is the concept of charge amplification? Draw its circuit and explain the operation. c) Draw schematic block diagram of a heterodyne wave analyzer. Explain its working in brief. d) List various leaf parameters. Explain measurement of any one parameter in brief. e) What is seebeck effect? Explain various types of thermocouples used in temperature measurement systems. [3729]-23 2 4

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Additional Info : M.Sc. - I Electronic Science, EL2 UOT 04 : Instrumentation (Old Course) (Semister - II), Pune University
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