System and method for the determination of certain physical characteristics of sheet materials.
US4970895A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1990 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Mar 9, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0282
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor is disclosed for sensing a physical property of a sheet material. The sensor includes a mechanism for supporting one side of the sheet along the periphery of a defined region and a mechanism for forcibly deflecting the sheet into the unsupported center of the defined region. A transducer may also be incorporated to sense the force required to deflect the sheet into the unsupported region and/or the distance that the sheet is deflected into the unsupported region. The sensor may be operatively coupled to a computer programmed to determine a physical property of the sheet based upon the sensed force and/or distance, such as the sheet failure strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.