Indian Institute of Technology Hyderabad 2011-2nd Sem B.Tech Electronics and Communications Engineering IV s,IL BIO-MEDICAL INSTRUMENTATION SET 4 - Question Paper

Time: three hours
Max Marks: 80

ans any 5 ques.
All ques. carry equal marks

1. discuss human muscle system. explain 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 different controls and
discuss how they function. [8+8]

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

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

5. (a) With an example, discuss the importance of an isolation amplifier in biomedical instrumentation.
(b) elaborate chopper amplifiers ? Draw a non mechanical chopper amplifier and
discuss 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? explain about the advantages and
disadvantages.[8+8]

7. (a) explain about different kinds of Bio chemical electrodes and provide their applications.
(b) Distinguish ranging from external and internal electrodes and provide a few examples [8+8]

8. (a) discuss the principle of operation of high frequency positive pressure ventilation.
(b) Briefly explain about the different gas transport mechanisms that can be used with
ventilators.[8+8]

Earning:   Approval pending.