Detection of blockage in a porous member
US10788458B2 · kind B2 · utility
6Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2016 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Apr 27, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0289
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of detecting at least a partial blockage in a porous member separating an inner chamber of a device having a gas sensor responsive to an analyte positioned within the inner chamber and an ambient environment includes emitting pressure waves within the inner chamber and measuring a change in phase of a response via a sensor responsive to pressure waves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.