System and method for detecting internal flaws in a particulate filter
US7698945B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2007 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Mar 26, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/048
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of detecting an internal flaw in a particulate filter includes a step of coupling ultrasonic transducer with the particulate filter. The method also includes a step of moving at least one of the ultrasonic transducer and the particulate filter relative to the other. Consistent coupling of the ultrasonic transducer with the particulate filter is maintained during the moving step. Ultrasonic energy is transmitted from the ultrasonic transducer through a majority of a volume of the particulate filter. The method also includes a step of determining if the particulate filter includes an internal flaw using the ultrasonic energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.