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Posted By: Nitin Bajaj - Editor Member Level: Diamond Posted Date: 25 Mar 2008
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2007 Jawaharlal Nehru Technological University B.Tech BIO-MEDICAL INSTRUMENTATION Question paper
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III B.Tech II Semester Supplimentary Examinations, Aug/Sep 2007 BIO-MEDICAL INSTRUMENTATION (Electronics & Instrumentation Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks
1. (a) What is meant by central neurons system? Explain the di?erent parts of it and their activity. (b) What are bioelectric potentials? Discuss the frequency and voltage range of ECG, EEG, EMG and ERG signals. [6+10]
2. (a) Bring out the salient features of phonocardiography. (b) Explain in detail the origin of di?erent heart sounds. [8+8]
3. (a) Draw the electrical equivalent circuit of a microelectrode and explain its electrical nature. (b) Discuss the di?erent types of surface electrodes and their uses.
4. (a) Explain the measurement of conduction velocities in motor nerves. (b) Discuss any two types of FM transmitters with their merits & demerits, used for the transmission of EMG signal. [6+10]
5. (a) Explain in detail the genesis of the ECG signal. (b) Draw and explain the Einthonen triangle and prove the Einthoren triangle. [6+10]
6. (a) Explain the clinical value of the EEG and also describe the various characteristics of an abnormal EEG. (b) Discuss about the type of electrodes used in the measurement of EEG and also di?erent locations of these electrodes on the skull in order to take the EEG. [8+8]
7. (a) Describe the principle and working of a computer based arrhythmia monitoring system. (b) Explain the indirect methods of measurement of blood pressure in detail. [8+8]
8. (a) Explain the types of leakage currents. (b) What are the precautions to be taken to minimize electric shock hazards? [8+8]
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