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2003 Course Biomedical Electronics

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Total No. of Questions : 12] [Total No. of Pages : 2 [3864]-252 P1298 B.E. (Electronics) BIOMEDICAL ELECTRONICS (2003 Course) Time : 3 Hours] [Max. Marks :100 Instructions to the candidates: 1) Answers to the two sections should be written in separate books. 2) Neat diagrams must be drawn wherever necessary. 3) Figures to the right indicate full marks. SECTION - I Q1) a) b) Q2) a) b) Q3) a) b) Q4) a) b) Explain the process of polarization, depolarization and repolarization with neat diagram. [9] What do you mean by absolute refractory period and relative refractory period? Compare with resting potential and action potential. [9] OR What is bioelectric potential? Explain in detail with necessary diagram.[9] With the help of two electrode equivalent circuit. Explain measurement of biopotential and a half cell potential. [9] Write the equation to calculate the following. [8] i) aVF ii) aVR iii) aVL iv) lead II. Draw the ECG waveform. Lable the critical parts of the waveform show amplitude and time duration for normal ECG. [8] OR Draw bipolar limb leads unipolar argumented limb leads and explain with necessary diagram. [8] How an isolation amplifier is used in a biosignal amplification? Explain [8] detail, working of such amplifier. P.T.O. Q5) a) b) Q6) a) b) Explain the concept of vectorcardiography with necessary diagram. [8] What do you mean by patient monitoring system? Explain the bed side monitoring system with the help of neat block diagram. [8] OR Explain any two types of cardiac pacemakers in detail with necessary waveforms. [8] Differentiate between DC and AC defibrillators. Explain the necessity in controlling the fibrillation. [8] SECTION - II Q7) a) b) Q8) a) b) Q9) a) b) Q10)a) b) Q11)a) b) Q12)a) b) Explain the flame photometer with necessary diagram. [9] Describe the working of colorimeter with the help of neat diagram. [9] OR Draw the circuit diagram and explain their operation for computation of i) base excess. ii) total CO2. iii) bicarbonate [9] Name the different method of cell counting. Explain any one in detail.[9] What are the different types of EMG. Explain the procedure to perform EMG. [8] Define the , , , and activities. [8] OR What are the different components of central nervous system? Explain in detail. [8] Draw the schematic diagram of an EEG machine. Explain the different blocks in detail. [8] Explain the basic steps required to form laser beam. [8] Give the comparison between Ruby laser and He-Ne laser. [8] OR Explain the operation of X-Ray Machine with the help of neat block diagram. [8] Explain the principles of MRI. How does an MRI scanner works. [8] E [3864]-252 E 2 E

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