Punjab Technical University 2005 M.Tech Machine Design MECHATRONICS ME 514 - Question Paper

MECHATRONICS ME 514 second Sem May 2k5

Max marks 100

Note: Attempt any 5 ques.. All ques. carry equal marks.

1. (a) discuss the principle f operation of an LVDT. What do you mean by electrical zero position? Draw the relative voltage signals with respect to the electrical zero position.
(b) describe capacitive pick-up. Write the basic formula governing the principle of capacitive transducer. describe every term. Also discuss the principle of operation.

2. (a) discuss the principle of operation of half-effect transducer.
(b) elaborate the characteristics of brushed DC motors? What is the function of commutator brush arrangement? discuss the principle of operation.

3. (a) Classify different kinds of gears. describe gear ratio. provide a few illustration of calculating gear ratio.
(b) Differentiate ranging from shaft, spindle and axle. provide practical example of every.

4. (a) explain different D to A convertor technique.
(b) Draw the block diagram of 8085 microprocessor and discuss every block.

5. (a) Bring out the analogy ranging from mechanical and electrical systems. discuss the principle used in model building.
(b) elaborate various parts of a robot? explain them briefly. discuss its application.

6. (a) State different postulates and theorems of Boolean algebra.
(b) Design a system to control the speed of a DC motor.

7. Design a solar tracking system to indicate the time in any season. What will be the components needed in this design? provide block diagram.

8. Write short notes on the following:
(a) Hall effect sensors.
(b) PLC
(c) CNC machines

Earning:   Approval pending.