Strain gage transducer system with guard circuit
US5135062A · kind A · utility
10Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1991 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Mar 15, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L1/2268
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A strain gage transducer system, such as a load cell based weighing system, is protected against moisture related errors by an electrically conducting guard circuit for terminals and other parts subject to wet or humid conditions. The guard circuit is connected to an electrical potential close to a potential of signal terminals in a strain gage bridge, for instance to a center tap in a power supply for the strain gage bridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.