Temperature-compensated weighing apparatus
US4489800A · kind A · utility
10Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1983 |
| Grant date | Dec 25, 1984 |
| Priority date | — |
| Expiry date | Jul 27, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S177/05
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Electromagnetic load compensation weighing apparatus including a temperature correction circuit having a temperature-responsive element mounted in heat sensing relation relative to the permanent magnet, characterized by the further mounting of a component of the compensating current supply circuit in heat-responsive relation relative to the permanent magnet. A Zener diode serving as a reference voltage device in the compensating current supply circuit is preferably the component that is mounted, together with the temperature-responsive element, in heat conducting relation in a common bore contained within the permanent magnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.