Apparatus and method for testing edge strength of sheet of material having detection mechanism for optically measuring strain in sheet
US11906483B2 · kind B2 · utility
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3References
20Claims
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Key dates
| Filing date | May 6, 2020 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Oct 24, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0647
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for testing a sheet of brittle material is disclosed. The apparatus can include a plurality of assemblies configured for selectively applying a 3-point bending load on an edge of the sheet of material in a test region of the apparatus, a detection mechanism that optically measures strain in the sheet of material in the region, and a processor that determines the stress in the sheet based on the measured strain by calculating the stress that would be required to produce the measured strain in the sheet of material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.