A Pirani Gauge is a type of pressure sensor used to measure low pressures in vacuum systems. It operates by measuring the thermal conductivity of the gas in the system.
A Pirani Gauge works by heating a wire or filament inside the vacuum chamber. As the gas molecules collide with the heated wire, they transfer heat away from it. The temperature of the wire is then measured and used to calculate the pressure of the gas in the system.
The saturation level in a Pirani Gauge refers to the maximum pressure that the gauge can accurately measure. Once the pressure in the system reaches this level, the gauge will no longer be able to accurately measure the pressure and will be "saturated".
The saturation level of a Pirani Gauge is determined by the design and construction of the gauge, as well as the type of gas being measured. It is typically listed in the gauge's specifications and can range from a few millitorr to several hundred torr.
Yes, the saturation level of a Pirani Gauge can be affected by factors such as the type of gas being measured, the temperature of the gauge, and the presence of any contaminants in the vacuum system. It is important to regularly calibrate and maintain the gauge to ensure accurate measurements.