Roll No.
Total No. of Pages : 02
Total No. of Questions : 09
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B.Tech.(Electrical & Electronics)(2013 Onwards)/(Electronics & Electrical) (2013 Batch)
(Sem.-4)
TRANSDUCERS AND SIGNAL CONDITIONING
Subject Code : BTEEE-402
M.Code: 72386
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Time: 3 Hrs.
Max. Marks : 60
INSTRUCTION TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
- SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.
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SECTION-A
- Answer briefly :
- Differentiate between sensors and transducer.
- What do you meant by active transducers?
- What is the need for sample and hold circuit in A/D converter?
- What is the effect of post defect acceleration in a CRT?
- What are the advantages of instrumentation amplifier?
- Mention the applications of LVDT.
- What is piezo electric effect?
- List the advantages of digital voltmeter.
- Draw the diagram of adder using OP-Amp.
- What do you meant by telemetry?
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SECTION-B
- What is data acquisition system? Give the block diagram arrangement of a data acquisition system and describe the function of each component.
- A quartz piezo-electric crystal having a thickness of 2mm and voltage sensitivity of 0.55V-m/N is subjected to a pressure of 1.5MN/m². Calculate the voltage output. If the permittivity of quartz is 40.6 × 10-12F/m, calculate its charge sensitivity.
- Explain the successive approximation type of A/D converter.
- With neat figure explain the construction and working principle of a digital CRO. Compare its advantages over an analog CRO.
- Describe the construction and working of resistance temperature detector with neat sketch. List its advantages and disadvantages.
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SECTION-C
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- What are the selection criteria for the transducer? Explain the construction and working of different types of capacitive transducers and discuss about their application in different fields.
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- Explain the working of photoelectric transducers with neat sketch. List its advantages, disadvantages and applications.
- Briefly discuss the use of LED and LCD as display devices in instrumentation. Comment on their relative merits and demerits.
- Write short note on following :
- Analog modulator and demodulator
- Digital frequency meter
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NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.
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This download link is referred from the post: PTU B.Tech 4th Semester Last 10 Years 2009-2019 Previous Question Papers|| Punjab Technical University