gauge pressure
Pressure above atmospheric
Gauge pressure is pressure measured relative to atmospheric pressure rather than to a vacuum.
A tire gauge reading of 32 psi means 32 pounds per square inch above atmospheric pressure.
Most everyday pressure measurements—tire pressure, blood pressure, compressed air—are gauge pressures.
Absolute pressure, by contrast, includes atmospheric pressure in the measurement.
- pressurizeIncrease internal air force
- psi23rd Greek letter
- pounds per square inchPressure unit, force/area
- manometerInstrument measuring gas pressure
- measurementDetermining size or amount
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