Download GTU BE/B.Tech 2019 Winter 6th Sem New 2161712 Bio Potential Instrumentation Question Paper

Enrollment No.

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BE - SEMESTER- VI (New) EXAMINATION — WINTER 2019

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Subject Code: 2161712 Date: 12/12/2019

Subject Name: Bio-Potential Instrumentation

Time: 02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

1. 1. Classify biomedical instruments. (03)
   2. Explain Anatomy & Physiology of the heart. (04)
   3. Draw and explain each block of generalized physiological measurement system of a human body. (07)

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2. 1. Describe Nernst equation and G-H-K formulation for biopotential calculation in body. (03)
   2. Define the following terms: (1) Signal to Noise Ratio (2) Noise Factor (3) Noise Figure (4) Noise Temperature (04)
   3. Explain generation of Action potential with appropriate diagram. (07)

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3. 1. Enlist ideal characteristics of an Instrumentation amplifier. (03)
   2. Write short note on Electrode half cell potential. (04)
   3. Draw block-diagram of typical clinical ECG machine and describe each block in brief. (07)

   OR

   1. Discuss different types of noise. Enlist different strategies for noise reduction. (07)

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4. 1. Explain chopper stabilized amplifier with neat diagram. (03)
   2. Draw neat sketch of ECG waveforms & wigger’s diagram & explain it. (04)
   3. Explain ECG amplification and signal conditioning circuits. (07)

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5. 1. Enlist types of Biopotential electrodes. Explain any one in brief. (03)
   2. Explain ECG lead system in brief. (04)
   3. What is EEG? Explain 10-20 electrode system (07)

   OR

   1. Classify EEG signals based on frequency ranges. (03)

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   2. Explain electro-conduction system of the heart. Discuss any three problems related to it. (04)
   3. Explain the block diagram of EEG machine. (07)
6. 1. What is human nervous system? (03)
   2. Discuss EEG recording modes. (04)

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   3. What is the difference between macroshock and microshock? Also discuss different sources contributing to generation of microshock. (07)

   OR

   1. Write a short note on Measurement Errors. (03)
   2. Briefly explain maintenance techniques for ECG machine. (04)
   3. Discuss physiological effects of electricity on human body in detail. (07)

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