Weighing scale with validating reference channel
US5172783A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1991 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Jul 1, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G23/3714
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic scale for weighing an article includes a weighing channel for providing an output indicative of the instantaneous weight of the article and a reference channel for providing an output indicative of instantaneous vibrations affecting the output of the weighing channel. The scale also has a mechanism for providing a signal indicative of a long term average of the reference channel's output. Another mechanism of the scale compares the average signal with the reference channel's output and provides a validation signal when the reference channel's output does not differ by more than a threshold amount from the average signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.