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. 09, 2021
Filed:
Oct. 14, 2019
Applicant:
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Inventors:
Scott M. Manson, Moscow, ID (US);
Ellery A. Blood, Moscow, ID (US);
Gregary C. Zweigle, Pullman, WA (US);
Assignee:
Schweitzer Engineering Laboratories, Inc., Pullman, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/34 (2020.01); G01P 3/48 (2006.01);
U.S. Cl.
CPC ...
G01R 31/343 (2013.01); G01P 3/4802 (2013.01);
Abstract
A frequency tracking system may use shaft speed and electrical frequency to estimate a frequency of a monitored machine. The frequency tracking system may convert shaft speed to a mechanical frequency and blend the electrical frequency and the mechanical frequency together to determine an estimated frequency. The frequency tracking system may blend the frequencies based on an operating state of the monitored machine and the frequency sensors.