CIRCUITS OF THERMIONIC EMISSION CURRENT AUTOMATIC CONTROL IN VACUUM MEASUREMENT INSTRUMENTS

Bartosz Kania

b.kania@pollub.pl
Lublin University of Technology, Faculty of Electrical Engineering and Computer Science (Poland)

Jarosław Sikora


Lublin University of Technology, Faculty of Electrical Engineering and Computer Science (Poland)

Abstract

This paper contains a review of thermionic emission current regulation circuits for low electron's energy widely used in vacuum measurement instruments for example mass spectrometers, ionization gauges. Based on the analysis results a new thermionic emission current controller using non-linear, digital PID configuration has been proposed.


Keywords:

automatic control system, thermionic emission current, ionization, vacuum measurement instruments

Donkov N., Knapp W.: Control of hot-filament ionization gauge emission current: mathematical model and model-based controller. Meas. Sci. Technol. 8, 1997, pp. 798–803.
  Google Scholar

Durakiewicz T.: Electron emission controller with pulsed heating of filament. Int. J. Mass Spectrom. Ion Process. 156, 1996, pp. 31–40.
  Google Scholar

Flaxer E.: Programmable smart electron emission controller for hot filament., Review of Scientific Instruments 82, 2011, 025111-8.
  Google Scholar

Halas S., Sikora J.: Electron emission stabilizer with a double negative feedback loop, Meas. Sci. Technol., 1, 1990, pp. 980-982.
  Google Scholar

Herbert B. K.: A circuit for stabilizing the electron current to the anode of a hot-filament device, Vacuum 26, 1976, pp. 363–9.
  Google Scholar

Sikora J.: Dual application of a biasing system to an electron source with a hot cathode, Meas. Sci. Technol., 15, 2004, N10 - N14.
  Google Scholar

Sikora J., Toborek K., Szczepaniak L.: Emission current stabilizer to electron-impact gas ion sources, Journal of Lviv Polytechnic University, 510, 2004, pp. 112-114.
  Google Scholar

Sikora J., Szczepaniak L.: Układ stabilizacji prądu termoemisji elektronowej zwłaszcza dla wysokich energii elektronów, Patent PL 210947, WUP Nr 3/2012.
  Google Scholar


Published
2014-09-26

Cited by

Kania, B., & Sikora, J. (2014). CIRCUITS OF THERMIONIC EMISSION CURRENT AUTOMATIC CONTROL IN VACUUM MEASUREMENT INSTRUMENTS. Informatyka, Automatyka, Pomiary W Gospodarce I Ochronie Środowiska, 4(3), 36–38. https://doi.org/10.5604/20830157.1121344

Authors

Bartosz Kania 
b.kania@pollub.pl
Lublin University of Technology, Faculty of Electrical Engineering and Computer Science Poland

Authors

Jarosław Sikora 

Lublin University of Technology, Faculty of Electrical Engineering and Computer Science Poland

Statistics

Abstract views: 200
PDF downloads: 146