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2003 Course Biomedical Instrumentation (Elective I)

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Total No. of Questions :12] P1079 [Total No. of Pages 2 [3864]-284 B.E. (Instrumentation & Control) BIOMEDICAL INSTRUMENTATION ( 2003 Course) (406264) (Elective -I ) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answer any three questions from each section. 2) Answers to the two sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary. 4) Assume suitable data,if necessary. SECTION - I Q1) a) b) Define Na Pump, depolarization, action potential and relative refractory period. [8] Mention bioelectric signals and their characteristics. [8] OR Q2) a) b) c) Q3) a) b) Draw the equivalent circuit for two electrodes connected to skin for biopotential measurement. [6] What is the role of electrolyte jelly while coupling electrode with body. [2] Define bio electrode. Name various types of basic bioelectrodes used for bioelectric potential measurements .Explain the various properties [8] that bioelectrode should possess. Draw and explain Einthoven triangle. Design a heart rate meter for rate & rhythm measurement. [8] [8] OR Q4) a) b) Design and explain ECG recorder. State the specifications of ECG recorder. Q5) a) Explain Phonocardiography. [8] [8] [10] b) List out the sensors used in Phonocardiography. [2] c) State the specifications of Phonocardiography. [6] P.T.O. OR Q6) a) b) c) What is systolic and diastolic pressure? [4] Describe in brief various techniques used for BP measurement. [8] Discuss Magnetic blood flow measurement along with neat diagram. [6] SECTION - II Q7) a) b) c) What is EEG? Enlist frequency bands of EEG and give their significance? [8] Enlist various illness and diseases for which EEG is effectively used. [6] Define efferent and afferent nerves ? [2] OR Q8) a) b) Explain 10-20 electrode placements for EEG recording. Explain various EEG recording modes. Q9) a) b) Enlist various Ophthalmic Instruments. [6] Design instrument used for measurement of loss in the peripheral vision of the subject. [6] Explain various errors in vision and their method of correction. [4] c) [8] [8] OR Q10)a) b) Q11)a) b) Explain the various types of audiometer with the help of suitable diagram. [14] What is the main organ responsible for frequency discrimination in human auditory system ? [2] Explain Bell-jar mechanical Spirometer for respiratory measurement. Explain the following terms with respect to respiratory measurement. i) IRV ii) TLC [16] iii) RV iv) IC State any one application of infrared gas analyzer. [2] OR Q12)a) b) Draw and explain the block diagram of servo controlled Ventilator. [8] Define let-go current and hold-on current and discuss precautions to minimize shock hazards. [10] zzzz [3864]-284 2

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