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- Penning gauge Quick Reference A type of cold-cathode ionization gauge in which a discharge is maintained between two electrodes with a potential difference of a few kilovolts. An axial magnetic field is also applied to cause electrons to move in spiral paths and increase the ionization current and sensitivity.
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Quick Reference. A type of cold-cathode ionization gauge in which a discharge is maintained between two electrodes with a potential difference of a few kilovolts. An axial magnetic field is also applied to cause electrons to move in spiral paths and increase the ionization current and sensitivity.
Penning gauge is a cold cathode Ionisation gauge consisting of two electrodes anode and cathode in side sensor. A potential difference of about 2.2 KV is applied between anode and cathode through current limiting resistors.
- Digital penning gauge.
- DPNG 001
- 9X10 (-3) to 1X10 (-6) mbar
- ONE
Penning’s vacuum gauge. By Andrea Sella 30 October 2012. Born not from the spark of an idea but the afterglow. Frans Michel Penning (1894–1953) Dutch scientist and inventor of a vacuum ...
Penning vacuum gauge (cut-away) There are two subtypes of cold-cathode ionization gauges: the Penning gauge (invented by Frans Michel Penning), and the inverted magnetron, also called a Redhead gauge. The major difference between the two is the position of the anode with respect to the cathode.
Feb 14, 2019 · There are two types of cold-cathode ionization gauges: the Penning gauge and the inverted magnetron. The Penning gauge is the style most often used in vacuum furnaces. Hot cathode ionization gauges can also be used and will be the subject of a future discussion.
Penning gauges are reliable down to about 10 −8 mbar and Bayard-Alpert gauges to 10 −11 mbar, in both cases the lower limit being dependent on detailed gauge design. A variant on the cold cathode gauge is the Inverted Magnetron gauge which is somewhat more stable in sensitivity and can work down to 10 −11 mbar.
