Why Your Vacuum Gauge Shows Pressure Plateau During Pump-Down
Defining the Plateau Phenomenon in Vacuum Pump-Down During a typical vacuum pump-down cycle in systems like mass spectrometers, scanning electron microscopes, or heat-treatment furnaces, pressure initially drops exponentially as the pump evacuates bulk gas. However, engineers often observe a “plateau”—a region where the pressure decline flattens or halts temporarily, as indicated by stable readings on […]
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