Dynamic high speed tensile tester
US6370962B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2000 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Jun 14, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0623
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system is provided for determining the tensile characteristics of a sample under dynamic conditions. The system includes an apparatus adapted to accelerate the sample to a desired test velocity and maintain the test velocity through a predetermined test run, and a microprocessor for controlling the apparatus, data collection and data evaluation. The apparatus is formed with two movable clamping jaws for engaging the sample and sensors for measuring characteristics necessary to determine the stress-strain characteristics of the sample. During the course of the test, a sample is accelerated to a predetermined test velocity and one end of the sample is caused to be instantaneously fixed. The other end of the sample is then translated away from the fixed end at the test velocity. A closed loop between the microprocessor, a linear encoder measuring velocity, and a linear motor can be formed to accordingly adjust and maintain the desired test velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.