How Temperature Affects Pirani Vacuum Gauge Readings
Thermal Principle Review Pirani vacuum gauges operate on the fundamental principle of gas thermal conductivity. A thin metal filament—typically platinum in modern designs like the Poseidon Scientific VG-SP205 Pirani Vacuum Transmitter—is heated by an electrical current and maintained at a constant temperature via a Wheatstone bridge circuit. As residual gas molecules collide with the hot […]
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