Wick moisture sensor for airborne particle condensational growth systems
US11029240B2 · kind B2 · utility
1Cited by
56References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2018 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Oct 12, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/4738
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A wick liquid sensor suitable for use in a particle condensation device is provided. The sensor includes a light source configured to illuminate a surface of the wick. A detector is configured to detect wick reflected light from the light source and determine the intensity of reflected light. The wick is formed from a porous media that is wettable by the liquid, and becomes translucent when filled with the liquid. The amount of reflectivity decreases as the saturation content of the liquid in the wick increases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.