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technical article
Knowledge about gauge pressure and absolute pressure
2011-11-23 10:52:10

加上大气压力就是绝对压力 Gauge pressure plus atmospheric pressure is absolute pressure . It counts from an absolute vacuum of zero.

Absolute pressure = gauge pressure + atmospheric pressure

=大气压力-真空压力 Absolute pressure = atmospheric pressure-vacuum pressure

The absolute pressure is represented by P in the calculation.

A standard atmospheric pressure is specified as follows: the air pressure at sea level at 0 ° C and a latitude of 45 degrees is called 1 atmosphere, and the value on the mercury barometer is 760 millimeters of mercury (equivalent to 1013.25 hectopascals).

   压力传感器 压力表上所指出的气体压力,并不是代表气体的真实压力,而为超出大气之压力值,也就是说没有把大气压力计算在内。 The gas pressure indicated on the pressure gauge of a general pressure sensor does not represent the true pressure of the gas, but is a value that exceeds the atmospheric pressure, that is, the atmospheric pressure is not calculated. The indicated pressure is calculated from zero atmospheric pressure. Also called gauge pressure or gauge pressure. Referred to as gauge pressure. Gauge pressure = absolute pressure-atmospheric pressure. Gauge pressure is relative to atmospheric pressure.