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Posted Date: 07 Jun 2011      Posted By:: praveen    Member Level: Gold  Points: 5 (₹ 1)

2011 Indian Institute of Technology B.Tech. Electronics and Communications Engineering IV B.Tech II Semester Examinations,APRIL 2011 BIO-MEDICAL INSTRUMENTATION SET 4 University Question paper

Course: B.Tech. Electronics and Communications Engineering   University/board: Indian Institute of Technology

Time: 3 hours
Max Marks: 80

Answer any FIVE Questions
All Questions carry equal marks

1. Explain human muscle system. Discuss in details with the blocks diagram, the
working of an EMG machine.[8+8]

2. (a) Draw ECG waveform and correlate with electrical and mechanical activity of
the heart.
(b) Draw amplifier circuits of ECG machine incorporating various controls and
explain how they function. [8+8]

3. (a) With neat sketches describe a cardiac cycle.
(b) Explain in detail about physiology of heart.[8+8]

4. (a) Explain the electro physiology of a nerve and explain how an impulse is transmitted from nerve to muscle.
(b) Explain the generation of bio- electric potentials associated with the muscles
of the heart. [10+6]

5. (a) With an example, explain the importance of an isolation amplifier in biomedical instrumentation.
(b) What are chopper amplifiers ? Draw a non mechanical chopper amplifier and
explain its working. [8+8]

6. (a) What is deionizer? How is it useful for the treatment of city water?
(b) What is acetate and bicarbonate dialysis? Discuss about the advantages and

7. (a) Discuss about various types of Bio chemical electrodes and give their applications.
(b) Distinguish between external and internal electrodes and give some examples [8+8]

8. (a) Explain the principle of operation of high frequency positive pressure ventilation.
(b) Briefly discuss about the various gas transport mechanisms that can be used with

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