Vacuum gauge

Details Vacuum gauge Vacuum gauge

1983-05-24

1987-01-13

Moore, David K.

Electric lamp and discharge devices

With evacuating pump

313230, 313264, A47B 500

Patent

active

046366806

ABSTRACT:
An ionization gauge of the type including a source of electrons, an accelerating electrode for accelerating said electrons through a volume generally defined by said accelerating electrode and a collector electrode, disposed in the volume. Ions are collected by the collector electrode. The accelerating electrode comprises a substantially closed anode having an internal cavity to precisely define the volume. An aperture is disposed to admit said electrons from the source into the closed volume.

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