CN102769463B - Cesium atomic frequency standard cesium-beam tube micro-current signal amplifier - Google Patents
Cesium atomic frequency standard cesium-beam tube micro-current signal amplifier Download PDFInfo
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- CN102769463B CN102769463B CN201210272994.3A CN201210272994A CN102769463B CN 102769463 B CN102769463 B CN 102769463B CN 201210272994 A CN201210272994 A CN 201210272994A CN 102769463 B CN102769463 B CN 102769463B
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- shielding box
- cesium
- signal
- amplifier circuit
- beam tube
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Abstract
The invention discloses a cesium atomic frequency standard cesium-beam tube micro-current signal amplifier, which comprises an amplifier circuit (1), a shielding box (2), a box cover A, a box cover B, a signal input terminal (5), a signal output terminal (6), a power terminal (7) and a damper (8). When the amplifier is in use, the damper (8) is fixed together with a caesium clock, and the amplifier circuit (1) with proper gain is selected according to the amplitude of a micro-current signal output by a cesium-beam tube. The cesium-beam tube micro-current signal amplifier is small in volume and stable in work performance; the current gain is large, and improvement of the cesium atomic frequency standard overall machine performance is facilitated.
Description
Technical field
The present invention relates to a kind of micro-current signal amplifier, particularly the micro-current signal amplifier of a kind of cesium atomic frequency standard cesium beam tube.
Background technology
At present, domestic magnetic separation state cesium atomic frequency standard is all to use electron multiplier as ion detection signal amplifier in cesium beam tube.Electron multiplier has following weak point: electron multiplication unstable properties, current domestic electron multiplier, in use multiplication constant decay is very large, multiplier make magnetic separation state cesium atomic frequency standard in use complete machine can not meet long-term work requirement; Life-span is short, and the termination in magnetic separation state cesium atomic frequency standard life-span causes due to the inefficacy of electron multiplier often.Current electron multiplier performance can not be brought into play the advantage of magnetic separation state cesium atomic frequency standard long-time stability aspect.
Summary of the invention
The object of the invention is to provide a kind of cesium atomic frequency standard cesium beam tube micro-current signal amplifier, solves the in use too fast and shorter problem of life-span of hydraulic performance decline of current cesium beam tube electron multiplier.
The micro-current signal amplifier of cesium atomic frequency standard cesium beam tube, comprising: amplifier circuit, shielding box, lid A, lid B, signal input terminal, signal output terminal, power supply terminal, vibration absorber.
Amplifier circuit is placed in shielding box inside; Lid A is placed in shielding box upper end; Lid B is placed in shielding box lower end; Signal input terminal is placed in shielding box left end, and signal output terminal is placed in shielding and closes right-hand member; Power supply terminal and shielding box rear end screw thread are fixed; Vibration absorber is rectangular metal box, and shielding box is placed in vibration absorber, and vibration absorber and shielding box screw are fixed.Shielding box is the rectangular bucket of up/down perforation, shielding box is fixed with amplifier circuit, lid A, lid B, signal input terminal, signal output terminal screw respectively, there is through hole at shielding box rear portion, and power supply terminal is placed in through hole, and power supply terminal and shielding box screw thread are fixed.The signal input pad of amplifier circuit, signal o pads, power pad are weldingly connected with the inside end of signal input terminal, signal output terminal, power supply terminal respectively.Shielding box is connected with vibration absorber screw.
During use, vibration absorber and caesium clock are fixed, and export micro-current signal amplitude select the suitable amplifier circuit of gain according to cesium beam tube.Power supply terminal is connected amplifier circuit positive-negative power, and micro-current signal of cesium beam tube output is introduced the input of amplifier circuit by shielded flexible cable.Micro-current signal after filtering, transform, be amplified to the signal amplitude that caesium frequency standard servo circuit needs, produce a voltage signal and export from signal output terminal, for caesium clock next stage circuit.
In the course of the work, the output signal of domestic cesium beam tube is constantly declining, and when output signal drops to can not meet whole clock circuit and use time, the life-span of cesium beam tube has also just terminated.Use the present invention on domestic caesium clock after, can continue to amplify micro-current signal of cesium beam tube output, guarantee the normal work of next stage caesium clock circuit.Therefore, using the present invention is that raising for cesium beam tube life-time dilatation and caesium clock performance is all useful.The micro-current signal amplifier volume of cesium beam tube is little, stable work in work, and current gain is large, is conducive to the raising of cesium atomic frequency standard overall performance.
Accompanying drawing explanation
The schematic diagram of the micro-current signal amplifier of a kind of cesium atomic frequency standard cesium beam tube of Fig. 1;
The side cut away view of the micro-current signal amplifier of a kind of cesium atomic frequency standard cesium beam tube of Fig. 2.
1. amplifier circuit 2. shielding box 3. lid A 4. lid B 5. signal input terminals
6. signal output terminal 7. power supply terminal 8. vibration absorbers.
Embodiment
The micro-current signal amplifier of cesium atomic frequency standard cesium beam tube, comprising: amplifier circuit 1, shielding box 2, lid A3, lid B4, signal input terminal 5, signal output terminal 6, power supply terminal 7, vibration absorber 8.
Amplifier circuit 1 is placed in shielding box 2 inside; Lid A3 is placed in shielding box 2 upper ends; Lid B4 is placed in shielding box 2 lower ends; Signal input terminal 5 is placed in shielding box 2 left ends, and signal output terminal 6 is placed in shielding and closes right-hand member; Power supply terminal 7 is fixed with shielding box 2 rear end screw threads; Vibration absorber 8 is rectangular metal box, and shielding box 2 is placed in vibration absorber 8, and vibration absorber 8 is fixed with shielding box 2 screws.The rectangular bucket that shielding box 2 is up/down perforation, shielding box 2 is fixed with amplifier circuit 1, lid A3, lid B4, signal input terminal 5, signal output terminal 6 screws respectively, there is through hole at shielding box 2 rear portions, and power supply terminal 7 is placed in through hole, and power supply terminal 7 is fixed with shielding box 2 screw threads.The signal input pad of amplifier circuit 1, signal o pads, power pad are weldingly connected with the inside end of signal input terminal 5, signal output terminal 6, power supply terminal 7 respectively.Shielding box 2 is connected with vibration absorber 8 screws.
During use, vibration absorber 8 is fixed with caesium clock, exports micro-current signal amplitude select the suitable amplifier circuit 1 of gain according to cesium beam tube.Power supply terminal 7 is connected amplifier circuit 1 positive-negative power, and micro-current signal of cesium beam tube output is introduced the input of amplifier circuit 1 by shielded flexible cable.Micro-current signal after filtering, transform, be amplified to the signal amplitude that caesium frequency standard servo circuit needs, produces a voltage signal and exports from signal output terminal 6, for caesium clock next stage circuit.
Claims (1)
1. the micro-current signal amplifier of cesium atomic frequency standard cesium beam tube, is characterized in that comprising: amplifier circuit (1), shielding box (2), lid A(3), lid B(4), signal input terminal (5), signal output terminal (6), power supply terminal (7), vibration absorber (8);
Amplifier circuit (1) is placed in shielding box (2) inside; Lid A(3) be placed in shielding box (2) upper end; Lid B(4) be placed in shielding box (2) lower end; Signal input terminal (5) is placed in shielding box (2) left end, and signal output terminal (6) is placed in shielding and closes right-hand member; Power supply terminal (7) is fixed with shielding box (2) rear end screw thread; Vibration absorber (8) is rectangular metal box, and shielding box (2) is placed in vibration absorber (8), and vibration absorber (8) is fixed with shielding box (2) screw; The rectangular bucket that shielding box (2) is up/down perforation, shielding box (2) respectively with amplifier circuit (1), lid A(3), lid B(4), signal input terminal (5), signal output terminal (6) screw fix, there is through hole at shielding box (2) rear portion, power supply terminal (7) is placed in through hole, and power supply terminal (7) is fixed with shielding box (2) screw thread; The signal input pad of amplifier circuit (1), signal o pads, power pad are weldingly connected with the inside end of signal input terminal (5), signal output terminal (6), power supply terminal (7) respectively; Shielding box (2) is connected with vibration absorber (8) screw;
During use, vibration absorber (8) is fixed with caesium clock, exports micro-current signal amplitude select the suitable amplifier circuit (1) of gain according to cesium beam tube; Power supply terminal (7) is connected amplifier circuit (1) positive-negative power, and micro-current signal of cesium beam tube output is introduced the input of amplifier circuit (1) by shielded flexible cable; Micro-current signal after filtering, transform, be amplified to the signal amplitude that caesium frequency standard servo circuit needs, produces a voltage signal and exports from signal output terminal (6), for caesium clock next stage circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210272994.3A CN102769463B (en) | 2012-08-02 | 2012-08-02 | Cesium atomic frequency standard cesium-beam tube micro-current signal amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210272994.3A CN102769463B (en) | 2012-08-02 | 2012-08-02 | Cesium atomic frequency standard cesium-beam tube micro-current signal amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102769463A CN102769463A (en) | 2012-11-07 |
| CN102769463B true CN102769463B (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210272994.3A Expired - Fee Related CN102769463B (en) | 2012-08-02 | 2012-08-02 | Cesium atomic frequency standard cesium-beam tube micro-current signal amplifier |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065502B (en) * | 2016-12-12 | 2019-08-23 | 兰州空间技术物理研究所 | A kind of method and magnetic separation state cesium-beam atomic clock extending the magnetic separation state cesium beam tube service life |
| CN110989325B (en) * | 2019-12-02 | 2021-07-20 | 北京无线电计量测试研究所 | Digital servo device and using method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3180711B2 (en) * | 1997-04-21 | 2001-06-25 | 日本電気株式会社 | Gain control device |
| CN1732620A (en) * | 2002-12-31 | 2006-02-08 | 摩托罗拉公司 | Power amplifier circuit and method using bandlimited signal component estimates |
| US7616060B2 (en) * | 2008-01-07 | 2009-11-10 | Mitsubishi Electric Corporation | Power amplifier |
| US7688144B2 (en) * | 2007-12-14 | 2010-03-30 | Industrial Technology Research Institute | Variable-gain wide-dynamic-range amplifier |
| CN202696581U (en) * | 2012-08-02 | 2013-01-23 | 中国航天科工集团第二研究院二〇三所 | Cesium atom frequency standard cesium-beam tube micro-current signal amplifier |
-
2012
- 2012-08-02 CN CN201210272994.3A patent/CN102769463B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3180711B2 (en) * | 1997-04-21 | 2001-06-25 | 日本電気株式会社 | Gain control device |
| CN1732620A (en) * | 2002-12-31 | 2006-02-08 | 摩托罗拉公司 | Power amplifier circuit and method using bandlimited signal component estimates |
| US7688144B2 (en) * | 2007-12-14 | 2010-03-30 | Industrial Technology Research Institute | Variable-gain wide-dynamic-range amplifier |
| US7616060B2 (en) * | 2008-01-07 | 2009-11-10 | Mitsubishi Electric Corporation | Power amplifier |
| CN202696581U (en) * | 2012-08-02 | 2013-01-23 | 中国航天科工集团第二研究院二〇三所 | Cesium atom frequency standard cesium-beam tube micro-current signal amplifier |
Non-Patent Citations (2)
| Title |
|---|
| JP特许第3180711号B2 2001.06.25 |
| 杨京，张涤新，王骥，陈江，朱宏伟.磁选态铯束管信号微电流放大器的设计与仿真.《真空与低温》.2011,第17卷(第1期),第37-40页. * |
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| CN102769463A (en) | 2012-11-07 |
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