ionization (vacuum) gauge
ionization (vacuum) gauge
A vacuum gage that measures the gas pressure by ionization mechanism. In the ionization (vacuum) gauge, residual gasses are ionized, and produced ions or electrons are captured, then the gas pressure is measured using the produced current. Two types of ionization gauge are available: a thermal-cathode ionization gauge that heats a filament and ionizes gasses using thermoelectrons (ex. B-A gauge) and a cold-cathode ionization gauge that ionizes gasses using plasma (ex. Penning gauge).
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