CN102159015A - Low-power consumption spectral lamp device of rubidium atomic frequency standard - Google Patents
Low-power consumption spectral lamp device of rubidium atomic frequency standard Download PDFInfo
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- CN102159015A CN102159015A CN2011100408021A CN201110040802A CN102159015A CN 102159015 A CN102159015 A CN 102159015A CN 2011100408021 A CN2011100408021 A CN 2011100408021A CN 201110040802 A CN201110040802 A CN 201110040802A CN 102159015 A CN102159015 A CN 102159015A
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Abstract
The invention discloses a low-power consumption spectral lamp device of a rubidium atomic frequency standard. The device comprises a spectral lamp, a radio frequency oscillation circuit, a constant temperature sleeve and a constant temperature control circuit, wherein the radio frequency oscillation circuit drives the spectral lamp to produce pump light; the constant temperature sleeve is covered on the spectral lamp; the constant temperature control circuit is used for controlling the constant temperature sleeve to keep constant the temperature of the spectral lamp; the radio frequency oscillation circuit comprises a filtering circuit, an amplification circuit and an oscillation frequency selection circuit which are sequentially connected; the amplification circuit comprises a transistor, a first biasing resistor, a second biasing resistor and a positive temperature coefficient thermistor; the first biasing resistor is connected between the collector and base of the transistor; the second biasing resistor is connected in series with the first biasing resistor; and the positive temperature coefficient thermistor is connected in parallel with the second biasing resistor, and is arranged in the constant temperature sleeve. The spectral lamp device provided by the invention has low power consumption, is convenient to use, and can improve the output frequency stability of the atomic frequency standard.
Description
Technical field
The present invention relates to the inactive type rubidium atom frequency scale field, relate more specifically to a kind of low-power consumption spectroscopic lamp device of Rb atom frequency marking.
Background technology
Atomic frequency standard is a kind of frequency source with good stable degree and accuracy, be widely used in location, the navigation of satellite and communicate by letter, field such as instrument and meter and astronomy.And Rb atom frequency marking becomes the atomic frequency standard that is most widely used at present because of it has advantages such as volume is little, in light weight, low in energy consumption, cost is low.
Wherein, the spectroscopic lamp that produces pumping light is the critical component of atomic frequency standard, and its performance has direct influence to the short-term and the long-term frequency stability of atomic frequency standard.Usually, the spectroscopic lamp device comprises that inside is filled with the strength circuit of the spectroscopic lamp of metal rubidium and build-up of luminance gas, exiting spectrum lamp generation pumping light, covers on the constant temperature sleeve on the spectroscopic lamp and be used to control the constant temperature control circuit that constant temperature sleeve makes spectroscopic lamp maintenance constant temperature.Generally, build-up of luminance gas is that excitation potential is low, the inactive inert gas of chemical property, for example: argon gas and krypton gas.
At the initial time that spectroscopic lamp starts, the high-frequency electric field that the strength circuit produces makes the build-up of luminance gas ionization in the spectroscopic lamp luminous.Build-up of luminance gas ion after the ionization is done the high-speed screw motion in spectroscopic lamp under the effect of high frequency magnetic field.Temperature in the spectroscopic lamp is on the constant temperature point that rises under the effect of constant temperature control circuit and heated by plasma effect about 120 °, and the metal rubidium in the spectroscopic lamp forms simple substance rubidium atom saturated vapor.The build-up of luminance gas ion of high-speed motion and the rubidium atom of vaporous bump, and make the rubidium atom obtain energy and enter high level, transit to low-lying level from high level then, discharge photon.
Usually, with the process of build-up of luminance gas from normality ionization to state of ionization in the spectroscopic lamp, need the strength circuit that bigger exciting power is provided, still, after spectroscopic lamp started, it was smaller to keep the required exciting power of the normal operation of spectroscopic lamp.Yet, in existing strength circuit, because the exciting power that any switching circuit control strength circuit provides is not set, thereby after spectroscopic lamp started, the strength circuit still provided bigger exciting power, thereby causes exciting power unnecessary.And unnecessary exciting power can be brought following influence: first, because exciting power is big, correspondingly causes the power of the transistor dissipation in the strength circuit also big, thereby causes transistor overheated easily, influence transistorized output, thereby reduced the stability of atomic frequency standard; The second, because quite a few unnecessary exciting power can discharge in the mode of radiation, it will cause interference to the machine system of whole Rb atom frequency marking, thereby cause the problem of electromagnetic compatibility.In addition, for the atomic frequency standard of spaceborne usefulness, because the atomic frequency standard of spaceborne usefulness is operated in the outer space, the spendable energy of satellite is very limited, thereby the energisation mode of existing strength circuit can cause the waste of unnecessary exciting power.
In order to address the above problem, common method is to insert a hand switch in the power circuit of spectroscopic lamp, before the startup of spectroscopic lamp, touches hand switch and high power supply voltage is provided for the strength circuit, thereby provide bigger exciting power to spectroscopic lamp, make the rapid build-up of luminance of spectroscopic lamp.Then, touching hand switch provides lower supply voltage to spectroscopic lamp, makes exciting power be reduced to normal state, keeps the spectroscopic lamp operate as normal.Yet such control mode causes using very inconvenient.
Therefore, be necessary to provide a kind of spectroscopic lamp device easy to use and low in energy consumption to overcome above-mentioned defective.
Summary of the invention
The object of the present invention is to provide a kind of low in energy consumption, easy to use and can improve the low-power consumption spectroscopic lamp device of the Rb atom frequency marking of atomic frequency standard output frequency stability.
To achieve these goals, the invention provides a kind of low-power consumption spectroscopic lamp device of Rb atom frequency marking, comprise spectroscopic lamp, encourage described spectroscopic lamp to produce the strength circuit of pumping light, covering on the constant temperature sleeve on the described spectroscopic lamp and being used to control described constant temperature sleeve makes described spectroscopic lamp keep the constant temperature control circuit of constant temperature, described strength circuit comprises the filter circuit that connects successively, amplifying circuit and vibration frequency selection circuit, described amplifying circuit comprises transistor, first biasing resistor, second biasing resistor and semistor, described first biasing resistor is connected between described transistorized collector electrode and the base stage, described second biasing resistor is connected with described first biasing resistor, described semistor is in parallel with described second biasing resistor, and described semistor is located in the described constant temperature sleeve.
Preferably, described vibration frequency selection circuit comprises feedback capacity, first electric capacity, excitation coil, second electric capacity and first inductance, described feedback capacity is connected between described transistorized emitter and the base stage, the two ends of described first inductance are connected with ground with an end of described feedback capacity respectively, described first electric capacity links to each other with the other end of described feedback capacity successively with described excitation coil and by described second capacity earth, described spectroscopic lamp is located in the described excitation coil.
Preferably, the low-power consumption spectroscopic lamp device of described Rb atom frequency marking also comprises neutral colour filter, and described neutral colour filter is located at the place ahead of described spectroscopic lamp.The light intensity that described neutral colour filter can guarantee promptly not change on a large scale spectroscopic lamp does not change again under the situation of temperature of spectroscopic lamp, the light decay that spectroscopic lamp sends is reduced to required light intensity, thereby reduce the optical frequency shift of Rb atom frequency marking, and then improve the stability of Rb atom frequency marking output frequency.
Preferably, described neutral colour filter is a transparent plastic.On the one hand, because transparent plastic is thinner, thereby can insert in the spectroscopic lamp device easily; On the other hand, because the transparent plastic of monolithic is smaller to the attenuation rate of light, thereby transparent plastic can compare meticulous adjusting to light.
Preferably, the low-power consumption spectroscopic lamp device of described Rb atom frequency marking also comprises convex lens, and described convex lens are located at the place ahead of described neutral colour filter.Because convex lens can increase the light that sees through, thereby, the utilance of light can be improved.
Compared with prior art, on the one hand, because the resistance of semistor can be in real time increases according to the rising of spectroscopic lamp ambient temperature in the amplifying circuit, like this, spectroscopic lamp the startup stage, the thermistor resistance is very little, thereby the exciting power that transistor is provided is very big, can start spectroscopic lamp fast; After spectroscopic lamp starts, the temperature of spectroscopic lamp flat-temperature zone constantly rises, it is big that the thermistor resistance constantly becomes, thereby the exciting power that transistor is provided reduces rapidly, after the temperature of spectroscopic lamp flat-temperature zone reaches constant temperature point and is in normal operating conditions, the resistance of thermistor then remains unchanged, the exciting power that makes transistor provide maintains less state, this shows, not only spectroscopic lamp the startup stage and also in spectroscopic lamp normal hour, the exciting power that transistor provides is all smaller, thereby, can reduce the power consumption of spectroscopic lamp device.On the other hand, owing to the rising along with temperature of the electric current of transistor collector increases, the resistance of semistor increases along with the rising of temperature, thereby the electric current of transistor collector is reduced, thereby can compensate that Yin Wendu increases and the increase of the transistor collector current that causes, the electric current that guarantees transistor collector does not change with ambient temperature, thereby the output that guarantees spectroscopic lamp is stable, and then improves the atomic frequency standard output frequency stability.Again on the one hand, owing to thermistor can change automatically with the variation of ambient temperature, thereby the control of the low-power consumption spectroscopic lamp device of Rb atom frequency marking of the present invention is convenient and quick.
By following description also in conjunction with the accompanying drawings, it is more clear that the present invention will become, and these accompanying drawings are used to explain embodiments of the invention.
Description of drawings
Fig. 1 is the structural representation of the low-power consumption spectroscopic lamp device of Rb atom frequency marking of the present invention.
Fig. 2 is the detailed circuit diagram of strength circuit of the low-power consumption spectroscopic lamp device of Rb atom frequency marking shown in Figure 1.
Embodiment
With reference now to accompanying drawing, describe embodiments of the invention, the similar elements label is represented similar elements in the accompanying drawing.
As shown in Figure 1, the low-power consumption spectroscopic lamp device of present embodiment Rb atom frequency marking comprises that spectroscopic lamp 10, the described spectroscopic lamp of excitation 10 produce the strength circuit 11 of pumping light, cover on constant temperature sleeve 12 on the described spectroscopic lamp 10, are used to control described constant temperature sleeve 12 and make described spectroscopic lamp 10 keep the constant temperature control circuit 13 of constant temperature, be located at the neutral colour filter 14 in described spectroscopic lamp 10 the place aheads and the convex lens 15 of being located at the place ahead of described neutral colour filter 14.The light that described spectroscopic lamp 10 sends is received by cavity bubble system 20 through described neutral colour filter 14 and described convex lens 15 backs.Preferably, described neutral colour filter 14 is a transparent plastic, transparent plastic relatively approaches thereby can insert easily in the low-power consumption spectroscopic lamp device of Rb atom frequency marking of the present invention, and because the transparent plastic of monolithic is smaller to the attenuation rate of light, thereby can compare meticulous adjusting to light.In addition, because convex lens 15 can increase the light that sees through, thereby, can improve the utilance of light.
As shown in Figure 2, described strength circuit 11 comprises filter circuit 111, amplifying circuit 112 and the vibration frequency selection circuit 113 that connects successively.
Described filter circuit 111 is filter capacitor C4, and the two ends of described filter capacitor C4 are connected with ground GND with power supply Ucc respectively.Described amplifying circuit 112 comprises transistor T, the first biasing resistor R1, the second biasing resistor R2 and the semistor Rp that is connected between described filter circuit 111 and the described vibration frequency selection circuit 113, the described first biasing resistor R1 is connected between the collector electrode and base stage of described transistor T, the described second biasing resistor R2 be connected on described first biasing resistor R1 and described vibration frequency selection circuit 113 between, and the base stage of described transistor T is connected on the tie point of described second biasing resistor R2 and described vibration frequency selection circuit 113.Described semistor Rp is in parallel with the described second biasing resistor R2, and described semistor Rp is located in the described constant temperature sleeve 12.
Described vibration frequency selection circuit 113 comprises first capacitor C 1, feedback capacity C2, second capacitor C 3, excitation coil L1 and first inductance L 2.Described feedback capacity C2 is connected between the emitter and base stage of described transistor T, the two ends of described first inductance L 2 connect an end and the ground of described feedback capacity C2 respectively, described first capacitor C 1 links to each other with the other end of described feedback capacity C2 successively with described excitation coil L1 and by described second capacitor C, 3 ground connection, described spectroscopic lamp 10 is located among the described excitation coil L1.
The operation principle of strength circuit 11 is: when spectroscopic lamp 10 is in starting state, semistor Rp resistance is very little, the transistor T base current is very big, and the transistor T collector current is that exciting current is also very big, thereby spectroscopic lamp 10 can obtain high exciting power and startup fast.Continuous rising along with temperature in spectroscopic lamp 10 flat-temperature zones, it is big that semistor Rp resistance becomes, the transistor T base current reduces rapidly, the transistor T collector current is that exciting current also reduces rapidly, rise to 120 ℃ constant temperature point up to the temperature of spectroscopic lamp 10 flat-temperature zones after, semistor Rp resistance no longer changes, spectroscopic lamp 10 beginning operate as normal.
Because the technology that described constant temperature control circuit 13 is well known to those skilled in the art does not repeat them here.
Above invention has been described in conjunction with most preferred embodiment, but the present invention is not limited to the embodiment of above announcement, and should contain various modification, equivalent combinations of carrying out according to essence of the present invention.
Claims (5)
1. the low-power consumption spectroscopic lamp device of a Rb atom frequency marking comprises spectroscopic lamp, encourage described spectroscopic lamp to produce the strength circuit of pumping light, covering on the constant temperature sleeve on the described spectroscopic lamp and being used to control described constant temperature sleeve makes described spectroscopic lamp keep the constant temperature control circuit of constant temperature, described strength circuit comprises the filter circuit that connects successively, amplifying circuit and vibration frequency selection circuit, described amplifying circuit comprises the transistor and first biasing resistor, described first biasing resistor is connected between described transistorized collector electrode and the base stage, it is characterized in that, described amplifying circuit also comprises second biasing resistor and semistor, described second biasing resistor is connected with described first biasing resistor, described semistor is in parallel with described second biasing resistor, and described semistor is located in the described constant temperature sleeve.
2. the low-power consumption spectroscopic lamp device of Rb atom frequency marking as claimed in claim 1, it is characterized in that, described vibration frequency selection circuit comprises feedback capacity, first electric capacity, excitation coil, second electric capacity and first inductance, described feedback capacity is connected between described transistorized emitter and the base stage, the two ends of described first inductance are connected with ground with an end of described feedback capacity respectively, described first electric capacity links to each other with the other end of described feedback capacity successively with described excitation coil and by described second capacity earth, described spectroscopic lamp is located in the described excitation coil.
3. the low-power consumption spectroscopic lamp device of Rb atom frequency marking as claimed in claim 1 is characterized in that, also comprise neutral colour filter, described neutral colour filter is located at the place ahead of described spectroscopic lamp.
4. the low-power consumption spectroscopic lamp device of Rb atom frequency marking as claimed in claim 3 is characterized in that, described neutral colour filter is a transparent plastic.
5. the low-power consumption spectroscopic lamp device of Rb atom frequency marking as claimed in claim 3 is characterized in that, also comprise convex lens, described convex lens are located at the place ahead of described neutral colour filter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100408021A CN102159015A (en) | 2011-02-21 | 2011-02-21 | Low-power consumption spectral lamp device of rubidium atomic frequency standard |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100408021A CN102159015A (en) | 2011-02-21 | 2011-02-21 | Low-power consumption spectral lamp device of rubidium atomic frequency standard |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103025034A (en) * | 2012-12-25 | 2013-04-03 | 北京无线电计量测试研究所 | High-performance spectrum lamp device for rubidium atomic frequency standard |
| CN103363359A (en) * | 2013-07-25 | 2013-10-23 | 中国科学院武汉物理与数学研究所 | Spectral lamp for rubidium atomic frequency standard |
| CN103595082A (en) * | 2012-08-13 | 2014-02-19 | 三星Sdi株式会社 | Cell balancing circuit and battery pack having the same |
| CN110262591A (en) * | 2019-06-17 | 2019-09-20 | 青岛海信宽带多媒体技术有限公司 | The temperature control method and optical module of optical module |
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| CN101055247A (en) * | 2007-05-17 | 2007-10-17 | 江汉大学 | Passive Rb atom frequency standard locking indication and fault diagnosis method |
| CN201028146Y (en) * | 2007-04-29 | 2008-02-27 | 天津万联管道工程有限公司 | Steel faucet steel cylinder longitudinal rib prestressed concrete pipe |
| CN101626239A (en) * | 2008-07-09 | 2010-01-13 | 中国科学院半导体研究所 | Inactive type rubidium atom frequency scale suitable for chip integration |
| CN101847994A (en) * | 2010-05-05 | 2010-09-29 | 中国科学院武汉物理与数学研究所 | Method and device for implementing Ramsey-CPT atomic frequency standard by microwave periodic On-Off modulation VCSEL |
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2011
- 2011-02-21 CN CN2011100408021A patent/CN102159015A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201028146Y (en) * | 2007-04-29 | 2008-02-27 | 天津万联管道工程有限公司 | Steel faucet steel cylinder longitudinal rib prestressed concrete pipe |
| CN101055247A (en) * | 2007-05-17 | 2007-10-17 | 江汉大学 | Passive Rb atom frequency standard locking indication and fault diagnosis method |
| CN101626239A (en) * | 2008-07-09 | 2010-01-13 | 中国科学院半导体研究所 | Inactive type rubidium atom frequency scale suitable for chip integration |
| CN101847994A (en) * | 2010-05-05 | 2010-09-29 | 中国科学院武汉物理与数学研究所 | Method and device for implementing Ramsey-CPT atomic frequency standard by microwave periodic On-Off modulation VCSEL |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595082A (en) * | 2012-08-13 | 2014-02-19 | 三星Sdi株式会社 | Cell balancing circuit and battery pack having the same |
| CN103595082B (en) * | 2012-08-13 | 2017-04-05 | 三星Sdi株式会社 | Unit balancing circuitry and the battery pack with which |
| CN103025034A (en) * | 2012-12-25 | 2013-04-03 | 北京无线电计量测试研究所 | High-performance spectrum lamp device for rubidium atomic frequency standard |
| CN103363359A (en) * | 2013-07-25 | 2013-10-23 | 中国科学院武汉物理与数学研究所 | Spectral lamp for rubidium atomic frequency standard |
| CN103363359B (en) * | 2013-07-25 | 2015-01-14 | 中国科学院武汉物理与数学研究所 | Spectral lamp for rubidium atomic frequency standard |
| CN110262591A (en) * | 2019-06-17 | 2019-09-20 | 青岛海信宽带多媒体技术有限公司 | The temperature control method and optical module of optical module |
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Application publication date: 20110817 |