Virtual tachometers based on time series filtering
US10444254B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2015 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Dec 1, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.