MU Biomedical Engineering (Semester 4)
Transducers and Sensors for Medical Applications
May 2016
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


Attempt any four
1(a) What is Biosensor? Give classification of Biosensor.
5 M
1(b) Explain Accuracy & Resolution.
5 M
1(c) Explain Electrode- Electrolyte interface.
5 M
1(d) What is motion Artifacts? How can it be minimized?
5 M
1(e) Explain with neat diagram any one application of piezoelectric transducer.
5 M

Describe with suitable example the following
2(a)(i) Zero Order System
4 M
2(a)(ii) First Order System
4 M
2(a)(iii) Second Order System
4 M
2(b) Explain generalized instrumentation system with the help of block diagram.
8 M

3(a) Explain basic principle of strain guage and derive the equation for guage factor.
10 M
3(b) Explain with suitable diagram the construction and working of LVDT. Draw the block diagram of phase shift detection system. Give one application of LVDT.
10 M

4(a) What is thermocouple? Explain with neat sketches laws governing thermocouple. State its advantages and applications.
10 M
4(b) What is half cell potential? How it is measured? What is over potential? What are the types of over potential?
10 M

5(a) Draw & explain electrical equivalent circuit of electrode skin interface.
10 M
5(b) Explain transcutancous measurement of arterial oxygen tension.
10 M

Attempt any four
6(a) Explain in detail affinity sensor
5 M
6(b) Write short note on pC02 electrode.
5 M
6(c) Explain in detail ISFET
5 M
6(d) Fiber Optic pressure transducer.
5 M
6(e) Distinguish between potentiometric and amperometric sensors.
5 M



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