Load-sensing element for a balance
US5183125A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1990 |
| Grant date | Feb 2, 1993 |
| Priority date | — |
| Expiry date | Jul 11, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G21/244
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A load-sensing element for a balance comprises a beam which receives the load at one end, with a horizontal recess. The bending points of two guide rods formed by sections of substantially reduced material cross-section on the upper and lower faces of said recess provide a parallel guide. The measurement signal is derived by means of two wire strain gauges at the bending points on the upper face. The lower guide rod has a shoulder between the bending points at which the external cross-section of the beam widens. As a result, the centrelines of the material cross-section of the bending points formed by this guide rod are mutually offset by a certain distance. In an alternative to the formation of the shoulder, wire strain gauges are provided at the bending points on the upper surface of the upper beam and on the lower surface of the lower beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.