Vacuum Gauges
Each vacuum gauge is based on a different physical principle and is more suitable for certain applications than others. The pressure range of a vacuum gauge is determined by the measuring principle used as well as the design and structure of the measuring device.
The criteria for selecting the vacuum gauge depend on the pressure range to be detected as well as various general conditions:
- Measuring range
- Required accuracy
- Gas composition (inert or corrosive)
- Environmental conditions such as ionizing radiation, strong magnetic fields
- Type of interface (analog or digital signal)
In addition to the actual measuring devices, there are accessories that simplify handling such as display, evaluation and documentation. In principle, only the total pressure can be determined with gauges; mass spectrometers are used for partial pressures.