Download GTU BE/B.Tech 2018 Winter 5th Sem Old 150302 Biomedical Transducers Question Paper

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Subject Code: 150302

GUJARAT TECHNOLOGICAL UNIVERSITY

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Instructions:

1. Attempt all questions.

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

1. (a) Define transducers. Discuss their performance characteristics. [07]
   (b) Explain photoconductive and photovoltaic transduction principle with their applications. [07]
2. (a) Write a technical note on types of strain Gauge, its construction and material selection criteria. [07]
   

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   (b) Explain working of LVDT with their construction, sensitivity and merits. [07]
3. (a) OR
   Derive equation of percentage change in capacitance due to variable separation. [07]
   (b) Explain working of optical pyrometer with their limitations. [07]
4. (a) Explain the concept of extra vascular and intra vascular pressure sensors with applications. Also give list of sensors used for the same applications. [07]
   

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   (b) OR
   Explain measurement of cardiac output with the help of thermistor with appropriate schematics. [07]
5. (a) Explain used of fiber optic pressure transducer for the intracranial pressure measurement in new borns. [07]
   (b) State Hagen-poiseuille equation for laminar flow. Explain working of fleish pneumotachometer. [07]
6. (a) Explain any transducer that used for angular displacement measurement. [07]
   

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   (b) OR
   Explain working principle of transducers used for nuclear Radiation measurement. [07]
7. (a) Explain construction and working of transcutaneous PO2 sensor. [07]
   (b) Write a short note on microbial biosensor for ammonia and nitrogen dioxide. [07]
8. (a) Explain structure and material selection of body surface biopotential recording electrodes. [07]
   

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   (b) OR
   Explain electrode-skin interface and motion artifact. [07]
9. (a) Explain concept of smart sensors with block diagram. [07]

Date: 30/11/2018
Total Marks: 70

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