BIOMEDICAL INSTRUMENTATION NOV/DEC 2008 seventh semester EEE

B.E/B.TECH. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2008
SEVENTH SEMESTER

Electrical and Electronics Engineering

EI 1351 - BIOMEDICAL INSTRUMENTATION
(REGULATION 2004)
TIME: THREE HOURS
MAXIMUM: 100MARKS

ANSWER ALL QUESTIONS
PART - A [10x2=20]

1. What are resting and action Potentials?
2. What is meant by central nervous system?
3. Distinguish betwen metallic microelectrode and non-metallic microelectrode
4. State the requirements for physiological amplifiers?
5. List the different methods used for direct measurement of blood pressure?
6. What do chemo-receptors, PCO2 sensors do in human system?
7. What is lithotripsy?
8. State any two problem which arises due to leakage currents in an equipment
9. What is the purpose of Audiometer?
10. What is the function of synchronous pacemaker?

PART - B [ 5x16=80]
11. a. i. Describe the generation and features of action potential. [Marks 8]
ii. Explain the function of human respiratory system [Marks 8]
or
b. i. Explain the working of piezoelectric transducer as arterial pressure sensor [Marks 8]
ii. Explain how piezoeletric transducer produces ultrasonic waves [Marks 8]

12. a. i. Draw a buffer amplifier circuit and explain its working [Marks 8]
ii. Explain the working of chopper amplifer [Marks 8]
or
b. Explain the working of i. ECG recorder ii. EMG system [Marks 2x8=16]

13. a. With suitable figure explain how PH, PCO2,PO2 are measured [Marks 16]

or
b. i. Explain any one method of measuring blood pressure [Marks 8]
ii. Write a note on Plethysmography [Marks 8]

14. a.i. Explain the working of X-ray machine [Marks 8]
ii. Write a note on endoscopy [Marks 8]
or
b.i. Explain the different elements involved in biotelemetry circuit. [Marks 9]
ii. Explian about patient monitoring system. [Marks 7]

15. a. With neat diagram, describe the workng of i. Heart lung machine ii. Dializer [Marks 8+8]
or
b. Explain briefly any one type of pacemaker circuit and defibrillator circuit [Marks 8+8]
 
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