Measuring system
US8244487B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2009 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Aug 16, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0647
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A measuring system for tensile or compressive tests is provided. A set of mirrors includes a first plane mirror and a second plane mirror. The angles between the first plane mirror and the first axis and between the second plane mirror and the first axis are both a specific included angle, such that the first and second plane mirrors are symmetrical to the first axis. An object to be tested is disposed between the set of mirrors and an image capturing apparatus. Two extremities of the object have the first and second labels, respectively. The first and second mirror images of the first and second labels are generated through the first and second plane mirrors, respectively. After the object is tensed or compressed, the image capturing apparatus obtains the displacement of the first and second labels according to the shifting of the first and second mirror images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.