Question: For wire wound strain gauges the approximate value of gauge factor is__________Where ρ,R,v and D are respectively resistivity, resistance, poisson’s ratio and diameter?
Answer:
MCQ: For wire wound strain gauges the approximate value of gauge factor is__________Where ρ,R,v and D are respectively resistivity, resistance, poisson’s ratio and diameter?
Correct Answer:
A. 1 + 2∆ρ / ρ
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Related Questions
- 1. Metal foil type strain gauges are superior to wire wound metal strain gauges because
- 2. Metal foil gauges use fat end turns in order to
- 3. In semiconductor strain gauges, the changes in resistance on application of strain
- 4. In semi-conductor strain gauges, when tensile strain is applied
- 5. The RTDs use the principle of change of resistance with temperature. The properties of a conductor materials to be used as an element of an RTD should possess the following properties
- 6. Platinum is the commonly used metal for RTDs this is because
- 7. The resistance of thermometer is 5 Ω at 30°C and 6.5 Ω at 60°C. using linear approximation, the value of resistance temperature co-efficient at 45°C
- 8. The sensitivity of thermistors as compared with sensitivity of platinum resistance temperature detector over a temperature range of -100°C to 400°C to changes in temperature is
- 9. A thermistor exhibits
- 10. The resistance value of thermistor is 5000Ω at 25°C and its resistance temperature co-efficient is 0.04/°C. A measurement with a lead resistance of 10 Ω will cause an error of
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