The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 2013
Filed:
Feb. 20, 2009
Applicant:
Armin Holle, Achim, DE;
Inventor:
Armin Holle, Achim, DE;
Assignee:
Bruker Daltonik GmbH, Bremen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
The amplification of secondary-electron multipliers in mass spectrometers is automatically adjusted by generating mass spectra with single ion signals, determining the average value of the peak heights of these single ion signals, and setting the amplification so that the average peak height assumes a desired nominal value. The amplification may be set via the supply voltage of the secondary-electron multiplier and can be increased or decreased by a desired factor using the known characteristic of the secondary-electron multiplier.