Methods and apparatus for frequency rectification
US7693212B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2005 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Mar 2, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/343
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of monitoring the condition of a machine is provided. The method includes receiving an input complex signal from the machine wherein the input complex signal has a plurality of signal components. The plurality of signal components includes at least one signal component containing a pre-determined frequency of interest and at least one signal component containing noise. The method further includes processing the input complex signal and generating an output complex signal having a plurality of signal components The plurality of signal components includes at least one signal component containing a pre-determined frequency of interest and at least one signal component containing noise. Processing the input complex signal includes executing a fixed-step integration and processing the output complex signal to assess whether a fault exists.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.