Method for calibrating large fixed electronic scale
US9097574B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2011 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | May 23, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G19/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for calibrating large fixed electronic scale is provided. The method applies an auxiliary verification device to calibrate the large fixed electronic scale without using a weight and includes following steps of: loading and unloading every supporting point on the scale table board of the scale by at least one self-locating loading and unloading mechanism; measuring and displaying a load that each loading and unloading mechanisms applies to the scale table board by at least one high accuracy load gauge; controlling a size of the load that each loading and unloading mechanisms applies to the scale table board by a constant load control device; and comparing a precise load displayed by the high accuracy load gauge with a gauge weighing display value of the scale to obtain a calibration error of the scale. The present method greatly improves working efficiency and safety and reduces costs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.