Recalibrating an elevator loadweighing system
US5407030A · kind A · utility
10Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1993 |
| Grant date | Apr 18, 1995 |
| Priority date | — |
| Expiry date | Mar 4, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G23/01
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Armature current I.sub.ARM is used to dynamically recalibrate the elevator loadweighing system, thereby eliminating errors in the load (% LOAD) reported from the loadweighing system which are a linear function of the actual weight. Errors in the load (% LOAD) reported from the loadweighing system which are a nonlinear function of the actual weight are minimized by sampled % LOAD values and corresponding actual weight values (% WGT), then mapping sampled % LOAD values to the corresponding % WGT values and providing the % WGT values to the drive instead of the received % LOAD values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.