GB1448952A - Atomic frequency standard - Google Patents
Atomic frequency standardInfo
- Publication number
- GB1448952A GB1448952A GB1455274A GB1455274A GB1448952A GB 1448952 A GB1448952 A GB 1448952A GB 1455274 A GB1455274 A GB 1455274A GB 1455274 A GB1455274 A GB 1455274A GB 1448952 A GB1448952 A GB 1448952A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cell
- lamp
- frequency
- ratio
- natural abundance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003513 alkali Substances 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 2
- 229910052701 rubidium Inorganic materials 0.000 abstract 2
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 abstract 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/26—Automatic control of frequency or phase; Synchronisation using energy levels of molecules, atoms, or subatomic particles as a frequency reference
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732317098 DE2317098B2 (de) | 1973-04-05 | 1973-04-05 | Gaszellen-atomfrequenznormal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1448952A true GB1448952A (en) | 1976-09-08 |
Family
ID=5877120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1455274A Expired GB1448952A (en) | 1973-04-05 | 1974-04-02 | Atomic frequency standard |
Country Status (6)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4494085A (en) * | 1982-04-28 | 1985-01-15 | Eg&G, Inc. | Miniaturized atomic frequency standard having both filter cell and absorption cell in resonator cavity |
| US4596962A (en) * | 1983-11-03 | 1986-06-24 | Duke University | Evacuated, wall-coated, sealed, alkali atom cell for an atomic frequency standard |
| US4661782A (en) * | 1985-11-25 | 1987-04-28 | Ball Corporation | Integrated microwave cavity resonator and magnetic shield for an atomic frequency standard |
| US5517157A (en) * | 1993-04-27 | 1996-05-14 | Ball Corporation | Evanescent-field interrogator for atomic frequency standards |
| US5656189A (en) * | 1994-12-02 | 1997-08-12 | Efratom Time And Frequency Products, Inc. | Heater controller for atomic frequency standards |
| US5489821A (en) * | 1994-12-27 | 1996-02-06 | Ball Corporation | Lamp oscillator for atomic frequency standards |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3304516A (en) * | 1964-10-05 | 1967-02-14 | Varian Associates | Optically pumped atomic resonance apparatus with improved optical pumping means |
| FR1594565A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1968-07-08 | 1970-06-08 |
-
1973
- 1973-04-05 DE DE19732317098 patent/DE2317098B2/de not_active Ceased
-
1974
- 1974-03-27 US US455269A patent/US3903481A/en not_active Expired - Lifetime
- 1974-03-28 CH CH437974A patent/CH567813A5/xx not_active IP Right Cessation
- 1974-04-02 GB GB1455274A patent/GB1448952A/en not_active Expired
- 1974-04-04 FR FR7411969A patent/FR2224901B1/fr not_active Expired
- 1974-04-05 JP JP49039363A patent/JPS5755234B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3903481A (en) | 1975-09-02 |
| FR2224901A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-10-31 |
| JPS5070063A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-06-11 |
| DE2317098B2 (de) | 1976-07-15 |
| JPS5755234B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1982-11-22 |
| DE2317098A1 (de) | 1974-10-17 |
| FR2224901B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1979-02-16 |
| CH567813A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19940401 |