What is a negative pressure gauge?
Vacuum table, negative pressure use
A negative pressure meter is an elastic sensitive element with absolute pressure below atmospheric pressure. It is very common to measure and direct an instrument higher than the ambient pressure. It is used in almost all industrial processes and research fields. Negative pressure is equal to the difference between atmospheric pressure and absolute pressure.Related definitions: table pressure: pressure expressed as zero (reference pressure) at atmospheric pressure. When absolute pressure is greater than atmospheric pressure, it is equal to the difference between absolute pressure and atmospheric pressure. Atmospheric pressure: pressure generated by the gravity of the earth's surface, also known as atmospheric pressure. Absolute pressure: the pressure expressed as a zero (reference pressure) of a complete vacuum.
The negative pressure gauge should be another name for the vacuum meterVacuum meter: Instrument Based on atmospheric pressure for measuring less than atmospheric pressure.