CN108613685A - A kind of alkali metal gas chamber producing device - Google Patents
A kind of alkali metal gas chamber producing device Download PDFInfo
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- CN108613685A CN108613685A CN201810392663.0A CN201810392663A CN108613685A CN 108613685 A CN108613685 A CN 108613685A CN 201810392663 A CN201810392663 A CN 201810392663A CN 108613685 A CN108613685 A CN 108613685A
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- gas
- alkali metal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
- G01C25/005—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass initial alignment, calibration or starting-up of inertial devices
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- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a kind of alkali metal gas chamber producing devices.The device devises a set of complete alkali metal gas chamber producing device from alkali metal gas chamber use demand and the angle of saving cost of manufacture.The device is mainly made of glass system, vacuum system and inflation system.The alkali metal gas chamber producing device can meet various atom magnetometers, the alkali metal gas chamber of atomic gyroscope makes and requires, and high-performance vacuum system ensures the operating environment of alkali metal gas chamber, and the inflation system pipeline and gas concentration unit of optimization can substantially reduce3He,21The waste of the noble gas such as Ne.
Description
Technical field
The present invention relates to the sensitive gauge outfit production fields of sub- atom magnetometer, atomic gyroscope.Especially it is a kind of it is complete,
High performance, gas saving alkali metal gas chamber producing device.
Background technology
In atom magnetometer, atomic gyroscope, alkali metal gas chamber is most important composition portion as core sensitivity gauge outfit
Point, how to make the alkali metal gas chamber of high-performance economizing type is required in research solve the problems, such as.Alkali metal gas chamber usually exists
It is filled with a certain amount of alkali metal in glass envelope, while also needing to be filled with buffer gas reduction relaxation, is filled with and gas absorption alkali is quenched
The photon that metallic atom depolarization process generates.If alkali metal gas chamber is used for atomic gyroscope, needing to be filled with can be polarized
Inert gas, by with polarized alkali metal atom collision realize nucleon polarization, for inertia rotation measurement.
Alkali metal gas chamber making at present has the following problems：First, how to meet various alkali metal and various gas compositions
Alkali metal gas chamber making, common alkali metal has K, Rb, a Cs, and common buffer gas is4He, it is N that gas, which is quenched,2, and
The common inert gas of atomic gyroscope has3He,21Ne,129Xe,131Xe.Secondly, the reduced performance of alkali metal gas chamber how is improved
The presence of the influence that alkali metal plenum interior impurity generates, impurity may cause alkali metal gas chamber thang-kng to be deteriorated, it is also possible to
It reacts with the indoor alkali metal of gas and introduces new relaxation term.Finally, how to reduce3He,21The waste of the noble gas such as Ne carries
The utilization ratio of high noble gas, in alkali metal gas chamber manufacturing process, only a small amount of gas is into air inlet chamber, and most gas
Body remains in vacuum line, and after experiment, this portion gas is both needed to take away, causes largely to waste.
Invention content
The technology of the present invention solves the problems, such as：Overcome the deficiencies of the prior art and provide a kind of alkali metal gas chamber producing device.
The device is mainly made of glass system, vacuum system and inflation system three parts.By optimizing inflation system pipeline structure simultaneously
Gas concentration unit is added, improves3He,21The noble gas utilization ratio such as Ne reduces waste, by using big pumping speed molecular pump and
Heating oven improves the influence that vacuum degree reduces alkali metal plenum interior impurity, passes through more gas pipings and reserved gas circuit extension
Interface can make the alkali metal gas chamber of a variety of different alkali metal, gas with various composition, can meet various atom magnetometers, atom
The alkali metal gas chamber of gyroscope, which makes, to be required.It is a set of complete alkali metal gas chamber producing device.
A kind of alkali metal gas chamber producing device proposed by the present invention, which includes with lower component：Gas cylinder 1, pressure reducing valve 2,
Flowmeter 3, pre- pipe interface 5, molecular pump 6, vaccum stop valve 7, vacuum gauge 8, film rule 9, can be cut down loading line shut-off valve 4
Switching 11, glass gas chamber 12, alkali metal ampoule bottle 13, heating oven 14, wherein：
After gas cylinder 1, pressure reducing valve 2, flowmeter 3, loading line shut-off valve 4 are sequentially connected, it is connected to by pre- pipe interface 5
On vacuum line；Molecular pump 6 is connected to vacuum line by vaccum stop valve 7；Vacuum gauge 8 is connected to vacuum line, for supervising
Test tube road vacuum degree；Film rule 9 are connected to vacuum line, and the pressure of gas is filled with for monitoring pipeline；
Glass gas chamber 12, alkali metal ampoule bottle 13 are connected to glass piping, glass piping is placed in heating oven 14, glass
Glass pipeline is connect by that can cut down switching 11 with vacuum line；
The working condition of each component is as follows in alkali metal gas chamber producing device：
Closing fills pipeline shut-off valve 4, opens vaccum stop valve 7, starts molecular pump 6 and is carried out to glass piping and vacuum line
It vacuumizes, while opening heating oven 14 and glass piping is toasted；Pipeline vacuum degree is monitored by vacuum gauge 8, works as pipeline
Vacuum degree reaches 10-5Pa or more closes heating oven 14, starts the making of alkali metal gas chamber：By a certain amount of alkali metal from alkali
It is caught up in metal ampoule bottle 13 in glass gas chamber 12；Then it carries out alkali metal and is filled with operation to glass gas chamber 12：Close vacuum
Shut-off valve 7 opens loading line shut-off valve 4, opens 1 bottleneck valve of gas cylinder and is inflated into glass gas chamber 12, and pressure reducing valve 2 is used for dropping
Low cylinder gas back pressure is filled with gas pressure intensity by 9 monitoring of film rule, the speed that gas is filled with is controlled by flowmeter 3
With gas flow loading line shut-off valve 4 is closed when gas pressure intensity reaches alkali metal gas indoor gas design parameter value；With fire
Flame rifle seals glass gas chamber 12 and removes glass gas chamber, and the glass gas chamber 12 for being filled with alkali metal at this time completes
Alkali metal gas chamber.
Further, above-mentioned alkali metal gas chamber producing device further includes gas recycling chamber 10, and the gas recycles chamber
10 are connected to vacuum line, for remaining gas in recovery pipe.Remaining gas can pass through liquid nitrogen cooling treatment in pipeline
Chamber 10 is recycled into gas, facilitates reuse next time, reduces3He,21The waste of the noble gas such as the noble gas such as Ne.
Further, the number of the glass gas chamber 12 in above-mentioned alkali metal gas chamber producing device may be set to 3 to 10, together
The making of the multiple alkali metal gas chambers of Shi Jinhang.
Further, gas cylinder 1 can install 5 or more and expansible in above-mentioned alkali metal gas chamber producing device, meet various
The making of alkali metal gas chamber.
The advantage of the invention is that：
1, built a set of complete alkali metal gas chamber producing device, can make a variety of different alkali metal, gas with various at
The alkali metal gas chamber of part, can meet various atom magnetometers, atomic gyroscope to alkali metal gas chamber demand.
2, it can ensure the condition of high vacuum degree that alkali metal gas chamber makes, alkali metal gas chamber is avoided not to be easily polluted by the external foreign matters, improve alkali
Metal air chamber vacuum performance.Wherein, the use of big pumping speed molecular pump is the premise that condition of high vacuum degree is realized, and heating oven is to pipeline
Baking cleaning, further increases the vacuum degree of glass piping and alkali metal gas chamber.
3, the loading line optimized, keeps loading line simple and reasonable, improves the utilization ratio of gas, meanwhile, lead to
The recycling for further increasing gas recycling chamber for residual gas in pipeline is crossed, is significantly reduced certain3He,21Ne etc. is valuable
The waste of gas.
Description of the drawings
Fig. 1 is the alkali metal gas chamber producing device of the present invention, wherein 1 is gas cylinder, 2 is pressure reducing valve, 3 is flowmeter, 4 is
Loading line shut-off valve, 5 be pre- pipe interface, 6 be molecular pump, 7 be vaccum stop valve, 8 be vacuum gauge, 9 be film rule, 10 be
Gas recycling chamber, 11 for can cut down switching, 12 be glass gas chamber, 13 be alkali metal ampoule bottle, 14 be heating oven.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific implementation mode further illustrates the present invention.
As shown in Figure 1, the alkali metal gas chamber producing device of the present invention includes gas cylinder 1, pressure reducing valve 2, flowmeter 3, gas tube
Road shut-off valve 4, molecular pump 6, vaccum stop valve 7, vacuum gauge 8, film rule 9, gas recycling chamber 10, can be cut down pre- pipe interface 5
Switching 11, glass gas chamber 12, alkali metal ampoule bottle 13, heating oven 14, dotted line are known as glass piping with upper pipeline, below dotted line
Pipeline be known as vacuum line, wherein：
After gas cylinder 1, pressure reducing valve 2, flowmeter 3, loading line shut-off valve 4 are sequentially connected, it is connected to by pre- pipe interface 5
On vacuum line；Molecular pump 6 is connected to vacuum line by vaccum stop valve 7；Vacuum gauge 8 is connected to vacuum line, for supervising
Test tube road vacuum degree；Film rule 9 are connected to vacuum line, and the pressure of gas is filled with for monitoring pipeline；
Glass gas chamber 12, alkali metal ampoule bottle 13 are connected to glass piping, can be connect simultaneously according to the length of glass piping
Enter multiple glass gas chambers 12, what is accessed in Fig. 1 is 3, can according to circumstances access 3-10；Glass gas chamber 12 is to make in advance
It forms, by the way that switching can be cut down after the completion of can thering is different shape and size, glass piping to build according to different use requirements
11 connect with vacuum line.
The working condition of each component is as follows in alkali metal gas chamber producing device：
Closing fills pipeline shut-off valve 4, opens vaccum stop valve 7, starts molecular pump 6 and is carried out to glass piping and vacuum line
It vacuumizes, in order to further increase the vacuum degree of glass piping, heating oven 14 is opened while being vacuumized to glass piping
Glass piping is toasted.Compared to using heating tape that can only be heated to 200 DEG C, the heating oven 14 of design can be by glass tube
Road heats 400 DEG C, greatly improves the cleanliness factor of glass piping.Pipeline vacuum degree, this vacuum gauge 8 are monitored by vacuum gauge 8
It is composite evacuated rule, it can be achieved that 105Pa to 10-9The measurement range of Pa vacuum degrees, when pipeline vacuum degree reaches 10-5When Pa or more,
Heating oven is closed, the making of alkali metal gas chamber can be started：
A certain amount of alkali metal is caught up with from alkali metal ampoule bottle 13 in glass gas chamber 12, extra alkali metal is caught up with into end
It holds in empty ampoule bottle, then carries out alkali metal and be filled with operation to glass gas chamber 12：It closes vaccum stop valve 7, open inflation
Pipeline shut-off valve 4 is opened required 1 bottleneck valve of gas cylinders and is inflated into glass gas chamber 12, and pressure reducing valve 2 is used for reducing gas cylinder gas
Body back pressure controls the speed and gas flow that gas is filled with by flowmeter 3, and film rule 9 are filled with gas pressure intensity for monitoring,
When gas pressure intensity reaches alkali metal gas indoor gas design parameter value, loading line shut-off valve 4 is closed；With flame gun to glass
Gas chamber 12 is sealed and removes glass gas chamber 12, and the glass gas chamber 12 for being filled with alkali metal at this time is the alkali metal gas to complete
Room.
Remaining gas can enter gas recycling chamber 10 by liquid nitrogen cooling treatment in pipeline, since liquid nitrogen temperature is compared
It is much lower in room temperature, so most of pipeline gas can carry out gas recycling chamber 10.In alkali metal gas chamber later makes
It can reuse, to effectively raise the utilization ratio of gas, reduce certain3He,21The waste of the noble gas such as Ne.
The content that description in the present invention is not described in detail belongs to the known technology of those skilled in the art.
Claims (4)
1. a kind of alkali metal gas chamber producing device, it is characterised in that：The device includes with lower component：Gas cylinder (1), pressure reducing valve (2),
Flowmeter (3), loading line shut-off valve (4), pre- pipe interface (5), molecular pump (6), vaccum stop valve (7), vacuum gauge (8),
Film rule (9) can cut down switching (11), glass gas chamber (12), alkali metal ampoule bottle (13), heating oven (14), wherein：
After gas cylinder (1), pressure reducing valve (2), flowmeter (3), loading line shut-off valve (4) are sequentially connected, pass through pre- pipe interface (5)
It is connected on vacuum line；Molecular pump (6) is connected to vacuum line by vaccum stop valve (7)；Vacuum gauge (8) is connected to vacuum
Pipeline, for monitoring pipeline vacuum degree；Film rule (9) are connected to vacuum line, and the pressure of gas is filled with for monitoring pipeline；
Glass gas chamber (12), alkali metal ampoule bottle (13) are connected to glass piping, glass piping is placed in heating oven (14),
Glass piping is connect by that can cut down switching (11) with vacuum line；
The working condition of each component is as follows in alkali metal gas chamber producing device：
It closes loading line shut-off valve (4), open vaccum stop valve (7), start molecular pump (6) to glass piping and vacuum line
It is vacuumized, while opening heating oven (14) and glass piping is toasted；Pipeline vacuum is monitored by vacuum gauge (8)
Degree, when pipeline vacuum degree reaches 10-5When Pa or more, heating oven (14) is closed, starts the making of alkali metal gas chamber：It will be a certain amount of
Alkali metal caught up in glass gas chamber (12) from alkali metal ampoule bottle (13)；Then alkali metal is carried out to glass gas chamber (12)
It is filled with operation：It closes vaccum stop valve (7), open loading line shut-off valve (4), open gas cylinder (1) bottleneck valve to glass gas
Inflation in room (12), pressure reducing valve (2) are used for reducing cylinder gas back pressure, and gas pressure intensity is filled with by film rule (9) monitoring,
The speed and gas flow that gas is filled with are controlled by flowmeter (3), when gas pressure intensity reaches alkali metal gas indoor gas design ginseng
When numerical value, loading line shut-off valve (4) is closed；Glass gas chamber is sealed and removed to glass gas chamber (12) with flame gun, this
When to be filled with the glass gas chamber of alkali metal be the alkali metal gas chamber to complete.
2. alkali metal gas chamber producing device according to claim 1, it is characterised in that：The device further includes gas reclaiming chamber
Room (10), the gas recycling chamber (10) is connected to vacuum line, for remaining gas in recovery pipe.
3. alkali metal gas chamber producing device according to claim 1, it is characterised in that：Glass gas chamber (12) in the device
Number may be set to 3 to 10, be carried out at the same time the making of multiple alkali metal gas chambers.
4. alkali metal gas chamber producing device according to claim 1, it is characterised in that：Gas cylinder (1) can install 5 in the device
It is a above and expansible, meet the making of various alkali metal gas chambers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810392663.0A CN108613685A (en) | 2018-04-27 | 2018-04-27 | A kind of alkali metal gas chamber producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810392663.0A CN108613685A (en) | 2018-04-27 | 2018-04-27 | A kind of alkali metal gas chamber producing device |
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| Publication Number | Publication Date |
|---|---|
| CN108613685A true CN108613685A (en) | 2018-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810392663.0A Pending CN108613685A (en) | 2018-04-27 | 2018-04-27 | A kind of alkali metal gas chamber producing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058013A (en) * | 2018-10-17 | 2020-04-24 | 北京自动化控制设备研究所 | Micro-miniature coating atomic air chamber packaging process |
| CN114408266A (en) * | 2022-01-24 | 2022-04-29 | 散裂中子源科学中心 | Glass pipeline device for preparing helium three-neutron polarized glass gas chamber and application thereof |
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2018
- 2018-04-27 CN CN201810392663.0A patent/CN108613685A/en active Pending
Patent Citations (4)
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| JP2001192875A (en) * | 2000-01-05 | 2001-07-17 | Kurita Water Ind Ltd | Method and apparatus for preparing hydrogen peroxide |
| CN104891791A (en) * | 2015-05-12 | 2015-09-09 | 北京航空航天大学 | Method for preparing glass bulb for atomic alkali metal gas chamber |
| CN107192633A (en) * | 2017-07-10 | 2017-09-22 | 北京航空航天大学 | Under a kind of SERF states in on-line measurement atom magnetometer air chamber alkali metal density method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058013A (en) * | 2018-10-17 | 2020-04-24 | 北京自动化控制设备研究所 | Micro-miniature coating atomic air chamber packaging process |
| CN111058013B (en) * | 2018-10-17 | 2022-07-15 | 北京自动化控制设备研究所 | Micro-miniature coating atomic air chamber packaging process |
| CN114408266A (en) * | 2022-01-24 | 2022-04-29 | 散裂中子源科学中心 | Glass pipeline device for preparing helium three-neutron polarized glass gas chamber and application thereof |
| CN114408266B (en) * | 2022-01-24 | 2023-11-21 | 散裂中子源科学中心 | Glass pipeline device for preparing helium three-neutron polarized glass air chamber and application thereof |
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Application publication date: 20181002 |
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