Humidity sensing element and hygrometer
US10859524B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2018 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Aug 21, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/225
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a humidity sensing element that includes an insulation section made of an insulating material, an application electrode to which a voltage is applied, and an output electrode which outputs a voltage signal corresponding to an electrical current flowing through an electrical path via water molecules adhering to a surface of the insulating material in response to the voltage applied to the application electrode. A distance between the application electrode and the output electrode is equal to or greater than a predetermined value, and/or a total sum of lengths of portions where the application electrode and the output electrode face each other is less than a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.