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cold-cathode ionization gauge

См. также в других словарях:

  • Hot cathode — is also a name for a hot filament ionization gauge, a vacuum measuring device.In vacuum tubes, a hot cathode is a cathode electrode which emits electrons due to thermionic emission. ( Cf. cold cathodes, where field emission is used and which do… …   Wikipedia

  • vacuum technology — Introduction       all processes and physical measurements carried out under conditions of below normal atmospheric pressure. A process or physical measurement is generally performed in a vacuum for one of the following reasons: (1) to remove the …   Universalium

  • Pressure measurement — The construction of a bourdon tube gauge, construction elements are made of brass Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges. A… …   Wikipedia

  • Frans Michel Penning — Infobox Scientist box width = name = Frans Michel Penning image width = caption = birth date = 12 September, 1894 birth place = Gorinchem, Netherlands death date = 6 December, 1953 death place = Utrecht, Netherlands residence = citizenship =… …   Wikipedia

  • Vacuum — This article is about empty physical space or the absence of matter. For other uses, see Vacuum (disambiguation). Free space redirects here. For other uses, see Free space (disambiguation). Pump to demonstrate vacuum In everyday usage, vacuum is… …   Wikipedia

  • Pressure sensor — Digital air pressure sensor Compact digital barometric pressure sensor A pressure sensor measure …   Wikipedia

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