Electrical scale with improved immunity to environmental disturbances
US4212361A · kind A · utility
25Cited by
2References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1979 |
| Grant date | Jul 15, 1980 |
| Priority date | — |
| Expiry date | Feb 22, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G23/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Conventional electrical scales having independent weighing channels for a reference weight and the actual load with subsequent division of the resulting load signal by the reference signal to furnish the final output cannot furnish a final output signal independent of accelerating disturbances in a large critical frequency region, since changes in load change the dynamic behavior of the load channel. To substantially decrease variations in the final output signal due to such accelerating disturbances, the load signal is additionally coupled to the reference channel by means of at least one frequency-dependent network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.