System and method for monitoring the status of one or more components of an electrical machine
US9252643B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | May 16, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A monitoring apparatus configured for monitoring a carbon brush of a brush holder assembly of an electrical machine. The monitoring apparatus may include a flexible sensor and a signal processing circuit for processing a signal received from the flexible sensor. The flexible sensor may have an electrical resistance that varies based on a radius of curvature of the flexible sensor, wherein the radius of curvature of the flexible sensor may be associated with a deflection of a spring providing a force to engage the carbon brush with a rotating component of the electrical machine. The signal processing circuit may be coupled to the sensor and may be configured to determine a measure of a wear state of the carbon brush using information about the variable resistance of the flexible sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.