____ measures dynamic pressure.
Show Hint
- Bourdon tube pressure gauges
- Barometric sensor
- Piezoelectric pressure sensor
- Piezoresistive pressure sensor
The Correct Option is C
Solution and Explanation
Measuring such pressure requires a sensor with a fast response time
- Bourdon tube pressure gauges are mechanical devices suitable for measuring static or slowly changing gauge pressures; they have significant inertia and slow response
- Barometric sensors measure atmospheric pressure, which usually changes relatively slowly
- Piezoresistive pressure sensors measure pressure based on the change in resistance of a material under stress
They can measure dynamic pressure but may have limitations in frequency response compared to piezoelectric sensors
- Piezoelectric pressure sensors utilize the piezoelectric effect, where certain crystals generate an electrical charge proportional to the applied pressure/force
This charge generation is nearly instantaneous, giving these sensors a very high frequency response, making them ideal for measuring dynamic and transient pressures (like explosions, pulsations, acoustics)
Therefore, piezoelectric pressure sensors are particularly well-suited for measuring dynamic pressure
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