System for producing paper product including a compact high-resolution under wire water weight sensor array
US6204672A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2000 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Apr 25, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/343
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A measurement apparatus for sensing three properties of materials including a fixed impedance element coupled in series with the sensor array between an input signal and a reference potential (e.g. ground). The sensor array exhibits a variable impedance resulting from changes in physical characteristics of the material. The variable impedance of the sensor array relates to changes in property of the material being sensed which can then be related to changes in other physical characteristics of the material such as weight, chemical composition, and temperature. The reduced size and increased resolution of the sensor array is particularly adaptive to a twin mesh sheetmaking system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.