Dynamometer comprising an elastic bar provided with strain gages
US4579007A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1984 |
| Grant date | Apr 1, 1986 |
| Priority date | — |
| Expiry date | Oct 30, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L1/2287
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The dynamometer comprises a bar (1) made of elastic material, which is intended to be subjected to the stresses to be measured and the outer surface of which possesses strain gages. This bar (1) is substantially cylindrical and has on its outer surface a series of resistive strips (3a,4,4a,5,5a) arranged in at least one helix, these strips being of substantially equal lengths, and each strip extending over part of the periphery of the bar (1) and being separated from the following strip in the direction of advance of the helix, the ends of some of these strips being connected electrically by means of conductive lamellae (7,8,9). The invention is used to measure bending, torsional and shearing stresses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.