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.

Date of Patent:
Oct. 15, 2019

Filed:

Oct. 19, 2015
Applicant:

Sikorsky Aircraft Corporation, Stratford, CT (US);

Inventors:

Christopher L. Winslow, Trumbull, CT (US);

Biqing Wu, Vancouver, WA (US);

Mark W. Davis, Southbury, CT (US);

Assignee:

SIKORSKY AIRCRAFT CORPORATION, Stratford, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P 3/48 (2006.01); G01H 1/00 (2006.01); G01P 15/00 (2006.01);
U.S. Cl.
CPC ...
G01P 3/4807 (2013.01); G01H 1/006 (2013.01); G01P 3/48 (2013.01); G01P 15/00 (2013.01);
Abstract

A system and method for receiving a plurality of first inputs from a transducer, where the plurality of first inputs correspond to vibrations of a rotational machine, and filtering the plurality of first inputs to derive a frequency of interest. The system and method then generates a sinusoidal signal at the frequency of interest and a pulse train of one or multiple pulses per revolution at the frequency of interest from the sinusoidal signal. The system and method further identifies a first pulse at a zero crossing within the pulse train and counts zero crossings to define blocks of data for use in time synchronous averaging calculations.


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