JP2679099B2 - Rubidium atomic oscillator - Google Patents
Rubidium atomic oscillatorInfo
- Publication number
- JP2679099B2 JP2679099B2 JP63084149A JP8414988A JP2679099B2 JP 2679099 B2 JP2679099 B2 JP 2679099B2 JP 63084149 A JP63084149 A JP 63084149A JP 8414988 A JP8414988 A JP 8414988A JP 2679099 B2 JP2679099 B2 JP 2679099B2
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- rubidium
- gas cell
- atomic oscillator
- rubidium atomic
- 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 - Lifetime
Links
- 229910052701 rubidium Inorganic materials 0.000 title claims description 25
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 title claims description 25
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 description 19
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 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)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は光ポンピング法を用いたガスセル形ルビジウ
ム原子発振器に関する。The present invention relates to a gas cell type rubidium atomic oscillator using an optical pumping method.
［従来の技術］ 従来のガスセル形ルビジウム原子発振器においては、
原子共鳴を利用するためキャビティが必要であり、この
中に挿入するルビジウムガスセルの形状誤差等により、
そのキャビティは共振周波数の調整を可能にする必要が
ある。[Prior Art] In a conventional gas cell type rubidium atomic oscillator,
A cavity is required to use atomic resonance, and due to the shape error of the rubidium gas cell inserted in this cavity,
The cavity should allow tuning of the resonant frequency.
キャビティを小型化しようとする時、キャビティ内に
ガスセルがいっぱいに充填されているため、周波数調整
には、ガスセルの中心軸に対して対称的な２個の凹部を
セル壁面に設定して該凹部にキャビティの壁面を貫通す
る突出部を出没可に突出させる方式がとられている。ま
た、ルビジウムガスセルのキャビティへの固定方法は、
キャビティとルビジウムガスセルの間に接着剤を注入し
て固定する方式がとられている。When attempting to miniaturize the cavity, the cavity is filled with gas cells. Therefore, for frequency adjustment, two recesses that are symmetrical with respect to the central axis of the gas cell should be set on the cell wall surface. In addition, a method is adopted in which a projecting portion that penetrates the wall surface of the cavity is projected so that it can appear and disappear. In addition, the method of fixing the rubidium gas cell to the cavity is
An adhesive is injected and fixed between the cavity and the rubidium gas cell.
［発明が解決しようとする課題］ 上述した従来の技術では、ルビジウムガスセル円周面
に凹部を設ける必要があるため、そのガスセルの製造が
難しく、又、キャビティにガスセルを固定する際に使用
する接着剤により、光通過面に接着剤の膜ができ、この
為、信号強度が低下するという欠点がある。[Problems to be Solved by the Invention] In the above-mentioned conventional technique, since it is necessary to provide a concave portion on the circumferential surface of the rubidium gas cell, it is difficult to manufacture the gas cell, and the adhesive used when fixing the gas cell to the cavity is used. The agent forms a film of an adhesive on the light transmitting surface, which has a drawback that the signal strength is lowered.
［課題を解決するための手段］ 本発明によるルビジウム原子発振器は、ルビジウムラ
ンプ、ルビジウムガスセル部よりなる光−マイクロ波共
鳴部を含むルビジウム原子発振器において、前記ルビジ
ウムガスセルを弾力性を有するボビン状スペーサにてキ
ャビティに固定し、前記ボビン状スペーサの凹部に対応
する位置で、前記キャビティの壁面を貫通する少なくと
も１個の突出部を出没可にしたことを特徴とする。[Means for Solving the Problems] A rubidium atomic oscillator according to the present invention is a rubidium atomic oscillator including an optical-microwave resonance part including a rubidium lamp and a rubidium gas cell part. It is fixed to the cavity by means of a cavity, and at least one projecting portion penetrating the wall surface of the cavity can be projected and retracted at a position corresponding to the concave portion of the bobbin spacer.
［実施例］ 以下、本発明の実施例について図面を参照して説明す
る。[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図を参照すると、本発明の一実施例によるルビジ
ウム原子発振器は、円筒形をしたキャビティ３を有し、
キャビテイ３内にはルビジウムガスセル１が収容されて
いる。ルビジウムガスセル１は、弾力性のある材料で作
られたスペーサ２により、キャビティ３に固定されてい
る。キャビティ３の光入射孔４から入った光は、ルビジ
ウムガスセル１のみを通過して太陽電池６に至り、良好
な信号強度が得られる。Referring to FIG. 1, a rubidium atomic oscillator according to an embodiment of the present invention has a cylindrical cavity 3.
A rubidium gas cell 1 is housed in the cavity 3. The rubidium gas cell 1 is fixed to the cavity 3 by a spacer 2 made of an elastic material. The light entering from the light entrance hole 4 of the cavity 3 passes through only the rubidium gas cell 1 and reaches the solar cell 6, and a good signal intensity is obtained.
また、ルビジウムガスセル１の外径を小さくし、スペ
ーサ２をボビン状の形状に作り、第１図に示すように、
このスペーサ２の凹部に対応する位置で、キャビティ３
の外周部分にチューニング用突出棒５を取付けることに
より、キャビティ３の共振周波数の調整を容易に行うこ
とが可能となっている。Further, the outer diameter of the rubidium gas cell 1 is reduced, the spacer 2 is formed into a bobbin shape, and as shown in FIG.
At the position corresponding to the recess of the spacer 2, the cavity 3
It is possible to easily adjust the resonance frequency of the cavity 3 by attaching the tuning protruding rod 5 to the outer peripheral portion of the cavity.
［発明の効果］ 以上説明したように、本発明は、ルビジウムガスセル
を弾力性を有するボビン状スペーサにてキャビティに固
定し、ボビン状スペーサの凹部に対応する位置で、キャ
ビティの壁面を貫通する突出部を出没可にすることによ
り、製造及び調整が容易になり、かつ、信号強度の低下
を防ぐことが可能になり、小型で高性能低価格のルビジ
ウム原子発振器を提供することができるという効果があ
る。[Effects of the Invention] As described above, according to the present invention, the rubidium gas cell is fixed to the cavity by the bobbin spacer having elasticity, and the protrusion penetrating the wall surface of the cavity at a position corresponding to the recess of the bobbin spacer. By making the part appearable and retractable, it becomes easy to manufacture and adjust, and it is possible to prevent a decrease in signal strength, and it is possible to provide a small-sized, high-performance and low-cost rubidium atomic oscillator. is there.
第１図は本発明の一実施例によるルビジウム原子発振器
の構成を示す図である。 １……ルビジウムガスセル、２……スペーサ、３……キ
ャビティ、４……光入射孔、５……チューニング用突出
棒、６……太陽電池。FIG. 1 is a diagram showing a configuration of a rubidium atomic oscillator according to one embodiment of the present invention. 1 ... Rubidium gas cell, 2 ... Spacer, 3 ... Cavity, 4 ... Light entrance hole, 5 ... Tuning stick, 6 ... Solar cell.
Claims (1)
よりなる光−マイクロ波共鳴部を含むルビジウム原子発
振器において、前記ルビジウムガスセルを弾力性を有す
るボビン状スペーサにてキャビティに固定し、前記ボビ
ン状スペーサの凹部に対応する位置で、前記キャビティ
の壁面を貫通する少なくとも１個の突出部を出没可にし
たことを特徴とするルビジウム原子発振器。1. A rubidium atomic oscillator including a rubidium lamp and an optical-microwave resonance part composed of a rubidium gas cell part, wherein the rubidium gas cell is fixed to a cavity by a bobbin spacer having elasticity, and a recess of the bobbin spacer is formed. A rubidium atomic oscillator, wherein at least one protrusion penetrating the wall surface of the cavity is allowed to appear and disappear at a position corresponding to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63084149A JP2679099B2 (en) | 1988-04-07 | 1988-04-07 | Rubidium atomic oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63084149A JP2679099B2 (en) | 1988-04-07 | 1988-04-07 | Rubidium atomic oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01257381A JPH01257381A (en) | 1989-10-13 |
| JP2679099B2 true JP2679099B2 (en) | 1997-11-19 |
Family
ID=13822447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63084149A Expired - Lifetime JP2679099B2 (en) | 1988-04-07 | 1988-04-07 | Rubidium atomic oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2679099B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04139776A (en) * | 1990-10-01 | 1992-05-13 | Nec Corp | Atomic oscillator |
| JP2806124B2 (en) * | 1992-01-17 | 1998-09-30 | 日本電気株式会社 | Rubidium atomic oscillator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4420626Y1 (en) * | 1966-02-28 | 1969-09-03 | ||
| 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 |
| JPS59108381A (en) * | 1982-12-14 | 1984-06-22 | Nec Corp | Rubidium atom oscillator |
| JPS59158576A (en) * | 1983-03-01 | 1984-09-08 | Nec Corp | Rubidium atom oscillator |
-
1988
- 1988-04-07 JP JP63084149A patent/JP2679099B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01257381A (en) | 1989-10-13 |
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