Liquid property sensor
US6781388B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2001 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Apr 27, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/226
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor includes a substrate consisting essentially of a non-conductive material, a first electrode, and a second electrode disposed on a first surface of the substrate, wherein the first electrode includes a first major portion traversing a length of the substrate and a finger extending from the major portion, wherein the second electrode includes a second major portion traversing the length of the substrate and a finger extending from the second major portion, wherein the first electrode finger extends toward the second electrode major portion and the second electrode finger extends toward the first electrode major portion and is substantially parallel to the first finger, and a third electrode connected to a ground, wherein the third electrode is interposed between and about the first and second electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.