Extensometer for material testing machine
US4823473A · kind A · utility
9Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 13, 1987 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Feb 13, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/388
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An extensometer for measuring strain in a materials test speciment including a frame, a pair of arms each having one end for contacting a portion of the specimen and a remote end, and a noncontact sensor assembly mounted on the arms to measure change in distance between the contact ends, the arms being pivotally supported between the ends by the frame at the centers of gravity of the arms and attached components of the sensor, to permit the arms to be freely pivotal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.