Pressure Measurement

Pressure is a fundamental thermodynamic property that is used to characterize the physical state of a substance. Spatial pressure differences can be related to the motion of a fluid through momentum conservation equations. Pressure measurements can therefore be used to characterize fluid behavior for electronic cooling system. Various pressure measurement techniques exist that are related to the fundamental definitions of pressure that can be used as calibration standards. Further, there are other sensor designs that can be easily integrated with automated data acquisition systems. This chapter will review those devices and provide a sampling of electronic cooling studies that have utilized pressure measurements as part of their analysis.