Atomic frequency standard
US5387881A · kind A · utility
15Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1993 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Mar 9, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/26
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The atomic frequency standard has a heating element (58) surrounding an enclosure (43) which defines a microwave resonance cavity (42). The heating element supplies heat to an absorption cell (41) located in the cavity. The absorption cell (41) is surrounded by electrodes (45a-45d) which act to enhance and orient the oscillating magnetic field in the region of the absorption cell. Thermally conductive members (47a-47d) connect the electrodes (45a-45d) to the enclosure (43) to better control the temperature of the cell while retaining the advantages due to the presence of the electrodes (45a-45d).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.