Verfahren zum Betreiben einer Ionenpumpe
Anmelder: Agilent Technologies, Inc. 🇺🇸
Details
- Veröffentlichungs-Nr.
- EP4645366
- Aktenzeichen
- EP25203447
- Anmeldetag
- 19. September 2025
- Veröffentlichung
- 5. November 2025
- Rechtsraum
- EP
- IPC
- H01J41/20
Abstract
The present invention relates a method for operating an ion pump allowing to accurately estimate the pressure even when the ion pump is fed with a high voltage, as well to a pumping system for implementing such method. The method provides for measuring a current absorbed by the ion pump at a first, lower voltage at which no leakage current is expected, estimating a current at a second, higher voltage starting from said measured current at said first voltage, measuring a current at said second voltage and comparing said estimated current at said second voltage and said measured current at sid second voltage. As a result, the presence of a leakage current and its contribution to the overall measured current when the pump is running at the second, higher voltage can be identified and a correction factor to be applied to the measured current at said second voltage for correctly estimating the pressure in the pump can be calculated.
Anmelder
- Firma
- Agilent Technologies, Inc.
- Land
- 🇺🇸 USA
US-amerikanischer Hersteller von Analysegeräten, Labortechnik und Diagnostiklösungen, 1999 als Ausgründung von Hewlett Packard entstanden. Schwerpunkte sind Chromatographie, Massenspektrometrie und Life-Science-Instrumente.
2.310 Patente in unserer Datenbank
Fachgebiete
1927 in Turin von Pierangelo Robba gegründet, heute eine der bedeutendsten italienischen IP-Kanzleien. Begleitet von Anmeldung über Recherchen bis zur Durchsetzung von Patenten, Gebrauchsmustern und Marken im In- und Ausland.