Isolated Silicon Pressure Cell Oil Dosing Volume Tolerances and Temperature Hysteresis
Isolated silicon cell thermal hysteresis depends directly on micro-dosing oil volume accuracy and outer diaphragm compliance balance.
Vacuum Degassing Protocol
Purification Sequence
Atmospheric evacuation sequences are used to remove air and other volatile contaminants from fluids before they are used in hydraulic systems. Following a vacuum degassing protocol prevents the formation of bubbles that could compromise the accuracy of a pressure transducer. The procedure is finished when the fluid stops showing active bubble formation under high vacuum.
Pressure Reduction
Placing the fluid in a vacuum chamber lowers the boiling point of the dissolved gases and allows them to escape. The chamber pressure is reduced in stages to prevent the fluid from boiling over or splashing the walls. Stirring the liquid during the process helps to bring gas molecules from the bottom to the surface.
Residual Level
Measurement of the remaining gas content is often done by checking the vapor pressure of the fluid. A successful process results in a liquid that can withstand rapid pressure changes without cavitation. Documentation of the vacuum level and the duration of the cycle provides the proof needed for quality audits.
Minimum Duration
Staying under vacuum for several hours is often required to ensure that even the most stubborn gases are removed. The exact time depends on the volume of the fluid and the surface area exposed to the vacuum.