Transducer bridge circuit arrangement
US4138882A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1978 |
| Grant date | Feb 13, 1979 |
| Priority date | — |
| Expiry date | Apr 6, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R17/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A transducer bridge circuit arrangement includes at least two bridge circuits connected in parallel to each other. Any interaction affecting the sensitivity of the bridge circuits relative to each other is eliminated. For this purpose the circuit arrangement includes two power input terminals and two measured signal output terminals. In order to avoid a signal component, which represents force couple related load components between the two measured signal output terminals, these terminals are arranged on the one hand between the two strain gauges which measure tension or compression only and, on the other hand, between the two strain gauges which measure tension as well as compression. In such an arrangement the power input terminals and the measured signal output terminals are effectively rotated by 90.degree. relative to prior art transducer circuit arrangements, whereby interaction between the individual bridge circuits in a multiple transducer system is eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.