Publication Number:	SI21714A
Application Date:	23. 2. 2004
Assignee/Applicant:	Jožef Stefan Institute [SI]
Inventor:	Alenka Vesel, Miran Mozetič
Title:	Postopek in naprava za merjenje ultravisokega vakuuma [SL], Procedure and Device for Measuring Ultrahigh Vacuum [EN]
Description:	The invention relates to a method and a device for measuring ultrahigh vacuum and, more particularly, to a method for measuring ultrahigh vacuum with an ultrahigh vacuum cold cathode pressure gauge, and to  an ultrahigh vacuum cold cathode pressure gauge. The pressure gauge according to the invention operates at a voltage that varies with pressure in such a way that the ion current is maintained at its maximum value at all times. The method for measuring ultrahigh vacuum by means of an ultrahigh vacuum cold cathode pressure gauge is characterized in that the voltage-controlled source (3) preliminarily scans the entire voltage range, preferably between 1 kV and 12 kV, in a short time, and subsequently sets the source to the voltage, at which the current was at its maximum value, or that, alternatively, the voltage-controlled source (3), based on the calibration of the gauge, sets the voltage, for a given pressure, to the value that has been previously stored as optimal. The device for measuring ultrahigh vacuum, is characterized in that the anode (1) of the pressure gauge cell is connected to a voltage-controlled source (3) providing a varying voltage.
Drawings:
Category:	Physical Sciences
Technology application codes:	Physical and exact sciences, Other industrial technologies
Market application codes:	Industrial products, Other
www:	https://worldwide.espacenet.com/patent/search/family/034882433/publication/SI21714A?q=si21714
Patent offices:	UIL RS

 

Extended patent application

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Publication Number:	WO2005080932A1
Application Date:	26. 1. 2005
Assignee/Applicant:	Jožef Stefan Institute [SI], Alenka Vesel [SI], Miran Mozetič [SI]
Inventor:	Miran Mozetič, Alenka Vesel
Title:	Method and Device for Measuring Ultrahigh Vacuum
www:	https://worldwide.espacenet.com/patent/search/family/034882433/publication/WO2005080932A1?q=WO2005080932A1

 

Extended patent application

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Publication Number:	US7800376B2
Application Date:	26. 1. 2005
Assignee/Applicant:	Jožef Stefan Institute [SI]
Inventor:	Alenka Vesel, Miran Mozetič
Title:	Method and Device for Measuring Ultrahigh Vacuum
www:	https://worldwide.espacenet.com/patent/search/family/034882433/publication/US7800376B2?q=%20US7800376B2