ionigauge

An ionigauge is a type of vacuum gauge used to measure the pressure of a vacuum system. It operates on the principle of ionization, where a small amount of gas is ionized and the resulting ions are collected, creating a measurable current. This current is proportional to the pressure in the system. Ionigauges are highly sensitive and can measure pressures ranging from 10^-2 to 10^-11 torr. They are commonly used in applications requiring high vacuum, such as in semiconductor manufacturing, research laboratories, and space simulation chambers. Ionigauges are typically more expensive than other types of vacuum gauges, but they offer the advantage of being able to measure pressure in a wide range of conditions. They are also less affected by magnetic fields, making them suitable for use in environments with strong magnetic fields. However, they require a stable power supply and can be affected by changes in the gas composition within the system.