Temperature control system for a permanent magnetic system
US6489873B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2001 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Jun 12, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3804
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A temperature control system for a permanent magnetic assembly in a permanent magnetic system comprises thermoelectric heat pumping devices which are in thermal contact with a yoke of the permanent magnet system. The heat pumping devices are controlled by an electronic circuit which controls the current that flows through them, so that the desired temperature of the permanent magnetic assemblies is achieved. Each thermoelectric heat pumping device includes a spring-loaded plunger which is mounted in a hole in the yoke.Heat is exchanged from or to the yoke via ambient air by natural convection or by forced air. Alternatively heat may be exchanged from the yoke via a cooling water circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.