Printed hygroscopic electrodes for low-cost capacitive relative humidity sensors
US11143615B2 · kind B2 · utility
1Cited by
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19Claims
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Key dates
| Filing date | Oct 31, 2018 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | May 29, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/605
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A capacitive relative humidity sensor includes a first electrode and a second electrode, where at least the one of the electrodes is a water-permeable electrode. The electrodes act in conjunction with a water-sensitive hygroscopic dielectric material. The design enables low-cost and simple fabrication of fast-responding and stable relative humidity sensors using digital fabrication techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.