Question: Consider the following transducers: <ol> <li>LVDT</li> <li>Piezoelectric</li> <li>Thermocouple</li> <li>Photovoltaic cell</li> <li>Strain gauge</li> </ol> Which of these are active transducers?
Answer:
MCQ: Consider the following transducers: <ol> <li>LVDT</li> <li>Piezoelectric</li> <li>Thermocouple</li> <li>Photovoltaic cell</li> <li>Strain gauge</li> </ol> Which of these are active transducers?
Correct Answer:
A. 2, 3 and 5
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Related Questions
- 1. LVDT can be used for
- 2. Thermocouples
- 3. A thermocouple temperature indicator with reference junction at room temperature has a time constant of 1 s. It is dipped in a hot bath of 120°C. If the room temperature is 20°C, after 1 s the thermocouple type temperature indicator will read
- 4. Excitation and amplification systems are needed for :
- 5. A d.c amplifier
- 6. When using a.c signal conditioning system for capacitive transducers , the carrier frequencies,
- 7. An a.c signal conditioning system is normally used for
- 8. In a carrier system, drift and spurious signals are important,
- 9. When using d.c signal conditioning system, with a carrier of 3 kHz, the data frequency should be limited to :
- 10. An operational amplifier has an open loop gain of 200000Ω.its output exhibits saturation at 10 V. the threshold differential voltage of the amplifier is:
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