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:
Nov. 26, 2024
Filed:
Nov. 30, 2021
Thermo Finnigan Llc, San Jose, CA (US);
Johnathan W. Smith, Round Rock, TX (US);
Scott T. Quarmby, Round Rock, TX (US);
Thermo Finnigan LLC, San Jose, CA (US);
Abstract
A mass spectrometer includes an ion source configured to produce ions from a sample; a set of quadrupole rods configured to select ions based on a mass-to-charge ratio; a DC rod driver configured to produce a voltage; a DC rod driver filter configured to filter RF frequency interference; and a controller. The controller is configured to utilize the results of the constrained convex optimization to cause a DC rod drive to produce the DC filter input and provide a required voltage to the set of quadrupole rods, the constrained convex utilizing a impulse response curve of the DC rod driver filter to determine a DC filter input to achieve the required voltage on the set of quadrupole rods; select ions passing through the set of quadrupole rods based on the mass-to-charge ratio; and measure the intensity of the ions.