JPH0817329B2 - Rubidium gas cell for rubidium atomic oscillator - Google Patents
Rubidium gas cell for rubidium atomic oscillatorInfo
- Publication number
- JPH0817329B2 JPH0817329B2 JP4303466A JP30346692A JPH0817329B2 JP H0817329 B2 JPH0817329 B2 JP H0817329B2 JP 4303466 A JP4303466 A JP 4303466A JP 30346692 A JP30346692 A JP 30346692A JP H0817329 B2 JPH0817329 B2 JP H0817329B2
- Authority
- JP
- Japan
- Prior art keywords
- rubidium
- cylindrical portion
- gas cell
- face plate
- atomic oscillator
- 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 - Fee Related
Links
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ルビジウム原子発振器
の光マイクロ波共鳴部に使用するルビジウムガスセルに
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubidium gas cell used for an optical microwave resonance part of a rubidium atomic oscillator.
【０００２】[0002]
【従来の技術】従来、図３のように、ルビジウム原子発
振器内のキャビティ部１内に、大小２つの円筒形が同軸
状に直列につながったルビジウムガスセル２を挿入して
おり、またキャビティ部１内のキャビティ長を短縮する
場合には、キャビティ部１の光透過孔１１とルビジウム
ガスセル２との間に誘電体板１２を挿入している。図に
おいて、７は光受光素子である。特開昭５９−１０８３
８１号公報や実願昭６１−６６３４１号（実開昭６２−
１７８５５７号）のマイクロフィルムには、キャビティ
部内に、大小２つの円筒形が同軸状に直列につながった
ルビジウムガスセルを挿入したルビジウム原子発振器が
開示されている。また、特開平４−３０２２１９号公報
には、キャビティ部の光透過孔とルビジウムガスセルと
の間に誘電体板を挿入したルビジウム原子発振器が開示
されている。 2. Description of the Related Art Conventionally, as shown in FIG. 3, a rubidium gas cell 2 in which two large and small cylindrical shapes are coaxially connected in series is inserted in a cavity 1 in a rubidium atomic oscillator, and the cavity 1 When the cavity length inside is shortened, the dielectric plate 12 is inserted between the light transmission hole 11 of the cavity portion 1 and the rubidium gas cell 2. In the figure, 7 is a light receiving element. Japanese Patent Laid-Open No. 59-1083
No. 81 and Japanese Utility Model Application No. 61-66341 (Japanese Utility Model Application No. 62-62).
178557) microfilm has a cavity
Inside the section, two large and small cylinders were coaxially connected in series.
A rubidium atomic oscillator with a rubidium gas cell inserted
It is disclosed. In addition, JP-A-4-302219
Includes a light transmission hole in the cavity and a rubidium gas cell
Disclosed is a rubidium atomic oscillator in which a dielectric plate is inserted between
Have been.
【０００３】[0003]
【発明が解決しようとする課題】前記特開昭５９−１０
８３８１号公報や前記実願昭６１−６６３４１号のマイ
クロフィルムに開示されたルビジウム原子発振器のよう
に、ルビジウム原子発振器内のキャビティ部１内に、ル
ビジウムガスセル２だけを挿入した場合、キャビティ部
１の内部のＱが高くなるため、経時的なキャビティ部１
の内部のマイクロ波レベル変化が大きくなり、長期周波
数安定度が悪くなるという欠点があった。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
No. 8381 and my application 61-66341
Like the rubidium atomic oscillator disclosed in Chrofilm
In addition, when only the rubidium gas cell 2 is inserted into the cavity portion 1 in the rubidium atomic oscillator, the internal Q of the cavity portion 1 becomes high, so that the cavity portion 1 with time elapses.
However, there was a drawback that the microwave level change in the inside became large and the long-term frequency stability deteriorated.
【０００４】又、前記特開平４−３０２２１９号公報に
開示されたルビジウム原子発振器のように、キャビティ
部１内のキャビティ長を短縮するために、光透過孔１１
とルビジウムガスセル２との間に誘電体板１２を挿入す
ると、誘電体板１２による光のロスは避けられず、ルビ
ジウムガスセル２に至る光のロスが多くなり、信号強度
が低下する欠点がある。更に、光透過孔１１とルビジウ
ムガスセル２との間に挿入された誘電体板１２は、前記
実願昭６１−６６３４１号のマイクロフィルムに開示さ
れているような、不要なルビジウム金属の溜まりをルビ
ジウムガスセル ２の内部からキャビティ部１の外部に移
し得る中空突出部を、ルビジウムガスセル２に設けるこ
とを妨げる。この結果、ルビジウム金属の溜まりがキャ
ビティ部１の内部にくるため、ルビジウム金属の溜まり
部分の温度が上昇し、ルビジウムガスセル２内に拡散
し、長期的に使用すると、キャビティ部１の内部のマイ
クロ波レベルが低下するという欠点があった。Further, in the above-mentioned Japanese Patent Laid-Open No. 4-302219.
As in the disclosed rubidium atomic oscillator, in order to shorten the cavity length in the cavity part 1, the light transmission hole 11
When the dielectric plate 12 is inserted between the rubidium gas cell 2 and the rubidium gas cell 2, the loss of light due to the dielectric plate 12 is unavoidable, and the loss of light reaching the rubidium gas cell 2 increases, resulting in the drawback that the signal strength decreases. Furthermore , the light transmission hole 11 and Rubijiu
The dielectric plate 12 inserted between the gas gas cell 2 and
It is disclosed in the microfilm of Japanese Utility Model Application No. 61-66341.
Rubi is an unnecessary pool of rubidium metal.
Moved from inside the dium gas cell 2 to outside the cavity 1.
A hollow protrusion that can be used is provided in the rubidium gas cell 2.
Interfere with and. As a result, the pool of the rubidium metal comes into the inside of the cavity portion 1, so that the temperature of the pool portion of the rubidium metal rises and diffuses into the rubidium gas cell 2, and if it is used for a long time, the microwave inside the cavity portion 1 is used. There was a drawback that the level decreased.
【０００５】本発明の第１の課題は、キャビティ部の内
部のＱを低くでき、光のロスのないルビジウム原子発振
器用ルビジウムガスセルを提供することにある。A first object of the present invention is to provide a rubidium gas cell for a rubidium atomic oscillator, which can reduce the Q in the cavity portion and has no light loss.
【０００６】本発明の第２の課題は、キャビティ部の内
部のＱを低くでき、光のロスがなく、しかも、不要なル
ビジウム金属の溜まりをキャビティ部の外部に移し得る
ルビジウム原子発振器用ルビジウムガスセルを提供する
ことにある。A second object of the present invention is to provide the inside of the cavity portion.
It is an object of the present invention to provide a rubidium gas cell for a rubidium atomic oscillator, which can reduce the Q of the portion, have no light loss, and can move unnecessary pools of rubidium metal to the outside of the cavity portion.
【０００７】[0007]
【課題を解決するための手段】本発明によれば、一端に
円板状の面板を有し、他端が開放された、第１の内径及
び第１の外径を有する第１の円筒状部と、前記第１の内
径に等しい径の孔を持つ円環状の面板を一端に有し、他
端に円板状の面板を有し、前記第１の内径よりも大きい
第２の内径及び前記第１の外径よりも大きい第２の外径
を有する第２の円筒状部とを備え、前記第１及び前記第
２の円筒状部が同一軸上に配列されるように、前記第１
の円筒状部の前記他端と前記第２の円筒状部の前記一端
の前記円環状の面板とが接続されたルビジウム原子発振
器用ルビジウムガスセルにおいて、前記第１の円筒状部
の外周に設けられ、前記第１の外径に等しい内径を有し
且つ前記第２の外径に等しい外径を有する円環状の誘電
体板を備えたことを特徴とするルビジウム原子発振器用
ルビジウムガスセルが得られる。According to the present invention, there is provided a first cylindrical shape having a first inner diameter and a first outer diameter, which has a disk-shaped face plate at one end and is open at the other end. A second inner diameter larger than the first inner diameter, and a circular face plate having a hole having a diameter equal to the first inner diameter at one end and a disc-shaped face plate at the other end. A second cylindrical portion having a second outer diameter larger than the first outer diameter, wherein the first and second cylindrical portions are arranged on the same axis. 1
In a rubidium gas cell for a rubidium atomic oscillator, wherein the other end of the cylindrical portion and the annular face plate at the one end of the second cylindrical portion are connected to each other, the rubidium gas cell is provided on the outer periphery of the first cylindrical portion. There is provided a rubidium gas cell for a rubidium atomic oscillator, comprising an annular dielectric plate having an inner diameter equal to the first outer diameter and an outer diameter equal to the second outer diameter.
【０００８】この場合、好ましくは、前記円環状の誘電
体板は、前記第２の円筒状部の前記円環状の面板に接し
た状態に、前記第１の円筒状部の外周に設けられる。In this case, it is preferable that the annular dielectric is used.
The body plate is in contact with the annular face plate of the second cylindrical portion.
And is provided on the outer periphery of the first cylindrical portion in the closed state .
【０００９】また、前記第２の円筒状部の外壁に、突出
先端に面板を有し、内部空間が前記 第２の円筒状部の内
部空間と連通する中空突出部が形成されている場合、前
記中空突出部を、前記第２の円筒状部の前記円環状の面
板から前記円環状の誘電体板を貫通して外方に突出させ
る。A protrusion is formed on the outer wall of the second cylindrical portion.
It has a face plate at the tip, and the internal space is inside the second cylindrical portion.
When a hollow protrusion communicating with the partial space is formed,
The hollow protrusion is formed on the annular surface of the second cylindrical portion.
From the plate, penetrate the circular dielectric plate and project outward
It
【００１０】この場合も、好ましくは、前記円環状の誘
電体板は、前記第２の円筒状部の前記円環状の面板に接
した状態に、前記第１の円筒状部の外周に設けられる。 Also in this case, it is preferable that the circular ring-shaped guide be used.
The electric plate is in contact with the annular face plate of the second cylindrical portion.
In this state, it is provided on the outer circumference of the first cylindrical portion .
【００１１】[0011]
【実施例】次に、本発明の実施例について図面を参照し
て説明する。Embodiments of the present invention will now be described with reference to the drawings.
【００１２】図１は、本発明の一実施例によるルビジウ
ム原子発振器用ルビジウムガスセル２′の正面図であ
り、図２は、このルビジウムガスセル２′をキャビティ
部１の内部に装填した場合の断面図である。FIG. 1 is a front view of a rubidium gas cell 2'for a rubidium atomic oscillator according to an embodiment of the present invention, and FIG. Is.
【００１３】このルビジウムガスセル２′は、第１及び
第２の円筒状部１０及び２０を備えている。第１の円筒
状部１０は、一端に円板状の面板４を有し、他端が開放
されており、第１の内径及び第１の外径を有している。
第２の円筒状部２０は、第１の内径に等しい径の孔を持
つ円環状の面板５を一端に有し、他端に円板状の面板６
を有し、第１の内径よりも大きい第２の内径及び第１の
外径よりも大きい第２の外径を有している。そして、第
１及び第２の円筒状部１０及び２０が同一軸上に配列さ
れるように、第１の円筒状部１０の前記他端と第２の円
筒状部２０の前記一端の円環状の面板５とが接続されて
いる。The rubidium gas cell 2'includes first and second cylindrical portions 10 and 20, respectively. The first cylindrical portion 10 has a disc-shaped face plate 4 at one end, is open at the other end, and has a first inner diameter and a first outer diameter.
The second cylindrical portion 20 has an annular face plate 5 having a hole having a diameter equal to the first inner diameter at one end and a disc face plate 6 at the other end.
And has a second inner diameter larger than the first inner diameter and a second outer diameter larger than the first outer diameter. An annular shape of the other end of the first cylindrical part 10 and the one end of the second cylindrical part 20 is arranged so that the first and second cylindrical parts 10 and 20 are arranged on the same axis. Is connected to the face plate 5.
【００１４】ルビジウムガスセル２′は、ルビジウム金
属が封入されたガラスでできており、また、ルビジウム
ガスセル２′の外壁の一部はキャビティ部１の内壁に固
定される。The rubidium gas cell 2'is made of glass in which rubidium metal is sealed, and a part of the outer wall of the rubidium gas cell 2'is fixed to the inner wall of the cavity 1.
【００１５】円環状の誘電体板８′は、第１の外径に等
しい内径を有し且つ第２の外径に等しい外径を有し、円
環状の誘電体板８′が、第２の円筒状部２０の円環状の
面板５に接した状態に、第１の円筒状部１０の外周に設
けられている。The annular dielectric plate 8'has an inner diameter equal to the first outer diameter and an outer diameter equal to the second outer diameter, and the annular dielectric plate 8'has a second outer diameter. It is provided on the outer periphery of the first cylindrical portion 10 in a state of being in contact with the annular face plate 5 of the cylindrical portion 20.
【００１６】誘電体板８′の挿入により、キャビティ部
１内のキャビティ長を短縮することができる。また、テ
フロン材（誘電体）等にて作られた誘電体板８′によ
り、キャビティ部１の内部のＱを下げることができ、マ
イクロ波レベル変動に対する周波数安定度を向上させる
ことができる。By inserting the dielectric plate 8 ', the cavity length in the cavity portion 1 can be shortened. Further, the dielectric plate 8'made of Teflon material (dielectric) or the like can lower the Q in the cavity 1 and improve the frequency stability with respect to microwave level fluctuation.
【００１７】第２の円筒状部２０の円環状の面板５に
は、突出先端に面板４０を有し、内部空間が第２の円筒
状部２０の内部空間と連通する中空突出部３が形成され
ている。この中空突出部３は、第２の円筒状部２０の円
環状の面板５から円環状の誘電体板８′を貫通して外方
に突出している。この中空突出部３の突出先端はキャビ
ティ部１の外側まで出ることが可能である。従って、中
空突出部３の突出先端は充分に冷却され、不要なルビジ
ウム金属は中空突出部３の突出先端部に溜まる。The annular face plate 5 of the second cylindrical portion 20 has a face plate 40 at the projecting tip, and a hollow protrusion 3 is formed so that the inner space communicates with the inner space of the second cylindrical portion 20. Has been done. The hollow projecting portion 3 projects outward from the annular face plate 5 of the second cylindrical portion 20 through the annular dielectric plate 8 '. The protruding tip of the hollow protruding portion 3 can extend to the outside of the cavity portion 1. Therefore, the protruding tip of the hollow protruding portion 3 is sufficiently cooled, and unnecessary rubidium metal is collected in the protruding tip portion of the hollow protruding portion 3.
【００１８】ルビジウムガスセル２′は光を受けてその
光を吸収した後、光受光素子７にて通過光を検出するた
め、光通過面は必要最低限のもので構成する必要があ
り、本実施例では、２つの面板４及び６のみに抑えられ
ている。このため、光の損失を最低限に抑えることが可
能である。Since the rubidium gas cell 2'receives light and absorbs the light and then detects the passing light by the light receiving element 7, it is necessary to configure the light passing surface by the minimum necessary. In the example, only two face plates 4 and 6 are used. Therefore, it is possible to minimize the loss of light.
【００１９】[0019]
【発明の効果】以上説明したように本発明によるルビジ
ウムガスセルは、小径の第１の円筒状部と大径の第２の
円筒状部からなる２重円筒構造をとり、第１の円筒状部
の外周に円環状の誘電体板を備えているため、キャビテ
ィ部内のＱを適度に下げることができ、マイクロ波レベ
ル変動に対する周波数安定度の向上が図れ、高性能化が
図れ、誘電体板による光のロスもない。As described above, the rubidium gas cell according to the present invention has a double cylindrical structure composed of a small-diameter first cylindrical portion and a large-diameter second cylindrical portion, and has a first cylindrical portion. due to the provision of outer circumference an annular dielectric plate, the Q of the cavity portion can be appropriately lowered, model improves frequency stability for the microwave level variation, Hakare higher performance, the dielectric plate There is no loss of light.
【００２０】また、本発明によるルビジウムガスセル
は、第２の円筒状部の外壁の一部から突出する中空突出
部を有する構造をとり、また、ルビジウムガスセルに誘
電体板を設けても、中空突出部が冷却されるため、不要
なルビジウム金属の溜まりをキャビティ部の外部に移し
得て、ルビジウム金属の拡散を防止でき、長期的に安定
した特性が得られ、品質及び特性の向上が図れる。Further, the rubidium gas cell according to the present invention has a structure having a hollow projecting portion projecting from a part of the outer wall of the second cylindrical portion, and even if the rubidium gas cell is provided with a dielectric plate, the hollow projecting portion is hollow. Since the portion is cooled, an unnecessary pool of rubidium metal can be transferred to the outside of the cavity portion, diffusion of rubidium metal can be prevented, stable characteristics can be obtained for a long time, and quality and characteristics can be improved.
【００２１】更に、誘電体板がルビジウムガスセルに付
加されているため、キャビティ部内のキャビティ長を短
縮することができる。Further, since the dielectric plate is added to the rubidium gas cell, the cavity length inside the cavity can be shortened.
【図１】本発明の一実施例によるルビジウム原子発振器
用ルビジウムガスセルの正面図。FIG. 1 is a front view of a rubidium gas cell for a rubidium atomic oscillator according to an embodiment of the present invention.
【図２】図１のルビジウムガスセルをキャビティ部の内
部に装填した状態の断面図。FIG. 2 is a cross-sectional view showing a state in which the rubidium gas cell of FIG. 1 is loaded inside a cavity.
【図３】従来のルビジウムガスセルをキャビティ部の内
部に装填した状態の断面図。FIG. 3 is a cross-sectional view showing a state in which a conventional rubidium gas cell is loaded inside a cavity.
１ キャビティ部 ２ ルビジウムガスセル ２′ ルビジウムガスセル ３ 中空突出部 ４ 円板状の面板 ５ 円環状の面板 ６ 円板状の面板 ７ 光受光素子 ８′ 誘電体板 １０ 第１の円筒状部 １１ 光透過孔 １２ 誘電体板 ２０ 第２の円筒状部 ４０ 面板 1 Cavity 2 Rubidium gas cell 2'Rubidium gas cell 3 Hollow protrusion 4 Disc face plate 5 Annular face plate 6 Disc face plate 7 Light receiving element 8'Dielectric plate 10 First cylindrical part 11 Light transmission Hole 12 Dielectric plate 20 Second cylindrical portion 40 Face plate
Claims (4)
された、第１の内径及び第１の外径を有する第１の円筒
状部と、 前記第１の内径に等しい径の孔を持つ円環状の面板を一
端に有し、他端に円板状の面板を有し、前記第１の内径
よりも大きい第２の内径及び前記第１の外径よりも大き
い第２の外径を有する第２の円筒状部とを備え、 前記第１及び前記第２の円筒状部が同一軸上に配列され
るように、前記第１の円筒状部の前記他端と前記第２の
円筒状部の前記一端の前記円環状の面板とが接続された
ルビジウム原子発振器用ルビジウムガスセルにおいて、 前記第１の円筒状部の外周に設けられ、前記第１の外径
に等しい内径を有し且つ前記第２の外径に等しい外径を
有する円環状の誘電体板を備えたことを特徴とするルビ
ジウム原子発振器用ルビジウムガスセル。1. A first cylindrical portion having a disk-shaped face plate at one end and an opening at the other end and having a first inner diameter and a first outer diameter; and a first cylindrical portion equal to the first inner diameter. A ring-shaped face plate having a hole of a diameter at one end and a disc-shaped face plate at the other end, and a second inner diameter larger than the first inner diameter and a first inner diameter larger than the first outer diameter A second cylindrical portion having an outer diameter of 2, and the other end of the first cylindrical portion so that the first and second cylindrical portions are arranged on the same axis. In the rubidium gas cell for a rubidium atomic oscillator, which is connected to the annular face plate at the one end of the second cylindrical portion, the rubidium gas cell for the rubidium atomic oscillator is provided on the outer periphery of the first cylindrical portion, and is equal to the first outer diameter. Rubidium atomic oscillation characterized by including an annular dielectric plate having an inner diameter and an outer diameter equal to the second outer diameter Rubidium gas cell for dexterity.
筒状部の前記円環状の面板に接した状態に、前記第１の
円筒状部の外周に設けられていることを特徴とする請求
項１に記載のルビジウム原子発振器用ルビジウムガスセ
ル。2. The annular dielectric plate is the second circle.
In a state of being in contact with the annular face plate of the tubular portion, the first
It is provided on the outer circumference of the cylindrical portion.
Item 1. A rubidium gas source for a rubidium atomic oscillator according to Item 1.
Le .
端に面板を有し、内部空間が前記第２の円筒状部の内部
空間と連通する中空突出部が形成されている請求項１に
記載のルビジウム原子発振器用ルビジウムガスセルにお
いて、前記中空突出部は、前記第２の円筒状部の前記円
環状の面板から前記円環状の誘電体板を貫通して外方に
突出していることを特徴とするルビジウム原子発振器用
ルビジウムガスセル。3. A projection point is provided on an outer wall of the second cylindrical portion.
It has a face plate at the end, and the internal space is the inside of the second cylindrical portion.
The hollow protrusion part which is connected to the space is formed.
In the rubidium gas cell for the described rubidium atomic oscillator
There are, the hollow protrusion for characteristics and to Lulu rubidium atomic oscillator that projects outwardly through the dielectric plate of the annular from the annular face plate of said second cylindrical portion Rubidium gas cell.
筒状部の前記円環状の面板に接した状態に、前記第１の
円筒状部の外周に設けられていることを特徴とする請求
項３に記載のルビジウム原子発振器用ルビジウムガスセ
ル。4. The annular dielectric plate is provided on the outer periphery of the first cylindrical portion while being in contact with the annular face plate of the second cylindrical portion. The rubidium gas cell for a rubidium atomic oscillator according to claim 3 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4303466A JPH0817329B2 (en) | 1992-11-13 | 1992-11-13 | Rubidium gas cell for rubidium atomic oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4303466A JPH0817329B2 (en) | 1992-11-13 | 1992-11-13 | Rubidium gas cell for rubidium atomic oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06152407A JPH06152407A (en) | 1994-05-31 |
| JPH0817329B2 true JPH0817329B2 (en) | 1996-02-21 |
Family
ID=17921307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4303466A Expired - Fee Related JPH0817329B2 (en) | 1992-11-13 | 1992-11-13 | Rubidium gas cell for rubidium atomic oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0817329B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5292675B2 (en) * | 2006-04-14 | 2013-09-18 | セイコーエプソン株式会社 | Rubidium atomic oscillator |
| JP5217175B2 (en) * | 2007-02-02 | 2013-06-19 | セイコーエプソン株式会社 | Centrifugal reservoir and method for producing rubidium lamp or rubidium gas cell |
| JP5713039B2 (en) * | 2013-03-04 | 2015-05-07 | セイコーエプソン株式会社 | Atomic oscillator |
| JP6511734B2 (en) | 2014-06-03 | 2019-05-15 | セイコーエプソン株式会社 | Atomic cell, quantum interference device, atomic oscillator, and electronic device |
| JP6476751B2 (en) | 2014-10-29 | 2019-03-06 | セイコーエプソン株式会社 | Atomic cell manufacturing method, atomic cell, quantum interference device, atomic oscillator, and electronic device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59108381A (en) * | 1982-12-14 | 1984-06-22 | Nec Corp | Rubidium atom oscillator |
| JPH0546291Y2 (en) * | 1986-04-30 | 1993-12-03 | ||
| JPH04302219A (en) * | 1991-03-29 | 1992-10-26 | Nec Corp | Rubidium atom oscillator |
-
1992
- 1992-11-13 JP JP4303466A patent/JPH0817329B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06152407A (en) | 1994-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB596568A (en) | Improvements in or relating to electron discharge devices | |
| JPH0817329B2 (en) | Rubidium gas cell for rubidium atomic oscillator | |
| US2427089A (en) | Switch | |
| US4891557A (en) | Magnetron device | |
| US3987333A (en) | Magnetron comprising a radially magnetized permanent magnet and an axially magnetized permanent magnet | |
| US2527699A (en) | Tunable oscillator | |
| US2514428A (en) | Electronic apparatus of the cavity resonator type | |
| US4204138A (en) | Permanent magnet-containing magnetron | |
| US3728650A (en) | Ghost-mode shifted dielectric window | |
| JP2679099B2 (en) | Rubidium atomic oscillator | |
| JPH0546291Y2 (en) | ||
| US2564716A (en) | Magnetron and method of manufacture | |
| JPH05235759A (en) | Rubidium atom oscillator | |
| US3422456A (en) | Atomic beam tube having an improved coaxial cavity | |
| US4012214A (en) | Method of making a cold cathode gas laser discharge tube | |
| US3787748A (en) | Frequency tuner of a resonator for a klystron | |
| JPS62295336A (en) | Large power klystron | |
| US2576702A (en) | Velocity modulation electron discharge device | |
| JP2806124B2 (en) | Rubidium atomic oscillator | |
| JPS633217Y2 (en) | ||
| US2624865A (en) | Plug-in magnetron and mount therefor | |
| US2887615A (en) | Magnetrons | |
| JPS5811047Y2 (en) | Waveguide filter | |
| KR940002762Y1 (en) | Magnetron for electric range | |
| JPS58165843U (en) | coaxial magnetron |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19961126 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100221 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100221 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110221 Year of fee payment: 15 |
|
| LAPS | Cancellation because of no payment of annual fees |