Sample gauge length and length after fracture measuring device
US10823543B2 · kind B2 · utility
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2Claims
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Key dates
| Filing date | Jan 28, 2019 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Jul 26, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0682
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sample gauge length and length after fracture measuring device includes a worktable, a first sliding table support and a second sliding table support, a control and length display, a spiral micrometer head, a scriber, a sample, etc. The reading device using the spiral micrometer head to directly measure the gauge length and the length after fracture has a detection accuracy of ±0.01 mm, which is superior to the requirement of ±0.05 mm in GB/T228 Metallic Materials Tensile Testing at Ambient Temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.