The Compound Gauge measures above and below atmospheric pressure (in psig and inches of Mercury).
The difference in pressure between absolute and gauge pressure.
A pressure gauge indicates actual pressure and a differential pressure gauge indicates the difference in pressure.
a sertain way
Pressure Indicator is any instrument that indicates pressure. Pressure Gauge is also a type of pressure Indicator. It is a mechanical device. Pressure indicators can work on mechanical deflection (in case of pressure gauge) or Piezo electric effect, change in capacitance, change in inductance etc. These are generally digital type instruments.
You measure the sound pressure with a sound pressure level meter (SPL meter).
i need to explain what an absolute pressure gauge measures
A compound gauge is a pressure gauge that displays both negative and positive gauge pressure measurements. Gauge pressure is a measurement of pressure relative to ambient pressure. For example, if ambient pressure was 14.7 PSI and you were to measure absolute vaccum using a compound gauge, the gauge would indicate -14.7 PSI.
The compound gauge is an instrument to measure pressures, positive or negative.
to measure pressure
Bourdon's tube pressure gauge cannot be used to measure negative pressure. This is because absolute pressure must be measured and the Bourdon gauge only indicates the gauge pressure.
A Bourdon Tube or a Bellows gauge
to measure pressure
Pressure.
pressure and temperature
To measure pressure
Pressure gauge
To measure air pressure.