CN202008470U - X-ray spectral measurement device with air isolation function - Google Patents
X-ray spectral measurement device with air isolation function Download PDFInfo
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- CN202008470U CN202008470U CN2011200503411U CN201120050341U CN202008470U CN 202008470 U CN202008470 U CN 202008470U CN 2011200503411 U CN2011200503411 U CN 2011200503411U CN 201120050341 U CN201120050341 U CN 201120050341U CN 202008470 U CN202008470 U CN 202008470U
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- vacuum
- test platform
- vacuum cavity
- measurement device
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Abstract
The utility model relates to an X-ray spectral measurement device with an air isolation function, which comprises a test platform, an X-ray emission source and a detection unit, wherein samples to be tested are placed on the test platform, and the detection unit is connected to the X-ray emission source. The X-ray spectral measurement device with the air isolation function is characterized in that a vacuum cover is arranged on the test platform, in addition, the test platform is connected with a vacuum cavity, the detection unit, an exhaust unit and a pressure obtaining unit are respectively arranged on the vacuum cavity, and the vacuum cavity is connected with a vacuum pump. Compared with the prior art, the X-ray spectral measurement device with the air isolation function has the beneficial effects that X rays are completely isolated from the air, and in addition, no gas exists in the vacuum cavity, so the detection line for measuring light elements is reduced, and the accuracy and the stability during the measurement of the light elements are improved.
Description
Technical field
The utility model relates to a kind of with X ray and air insulated, has the X ray spectral measurement device with air insulated function that causes the inaccuracy measured thereby solve because of air.
Background technology
Existing Xray fluorescence spectrometer equipment usually since when measuring the existence of air disturbed the accuracy of light element measurement in the sample, for example: adjacent with the C1 element atomic number when measuring the lower C1 element of content because of the atomic number that has argon gas and argon gas in the air, this shows that these two elements mutual serious interference in measuring process influences measurement result.To adopt the mode that increases light pipe power to measure in order to address this problem.But this scheme still has deficiency, and air is invisible after all, adopt to increase light pipe power and this problem is made moderate progress but still the existence that can not thoroughly address this problem.Therefore, how to make that any element in the measuring samples can also not be that industry is wanted the technical barrier that solves for a long time always because of containing the close measurement inaccuracy of bringing of disturbing mutually of identical element or element energy in the air.
Summary of the invention
The purpose of this utility model is to propose a kind of X ray spectral measurement device with air insulated function, this device makes X fluorescence and air insulated, make in the air identical element or energy can not produce effect each other thereby can not form interference, to overcome deficiency of the prior art near element.
The realization the technical solution of the utility model is:
A kind of X ray spectral measurement device with air insulated function, described device comprises test platform, X ray emissive source and probe unit, sample is placed on the test platform, described probe unit is connected to the X ray emissive source, it is characterized in that: on the described test platform vacuum (-tight) housing is set, and described test platform links to each other with vacuum cavity, is respectively equipped with probe unit, exhaust unit and pressure acquiring unit on this vacuum cavity, and vacuum cavity links to each other with vacuum pump.
Around the zone of placing sample seal groove is set on the described test platform, described vacuum (-tight) housing is placed on the sealing groove, and vacuum cavity links to each other with test platform by the sealing groove.
Described vacuum cavity links to each other with vacuum pump by flexible pipe.
The utility model focuses on to solve the problem that air disturbs in the measurement at deficiency of the prior art, has improved the detection limit and repeatability of measuring element; The utility model is integrated into the whole optical path and the probe unit of original equipment in the vacuum cavity, and carries out encapsulation process, has significantly promoted assembling when satisfying its vacuum seal requirement and has oversimplified, and maintainability is better, and reliability is higher.Through test, this design reaches test request fully, in the maintenance of vacuum tightness considerably beyond the level of the same industry, performance to equipment has obvious lifting, originally the element that can not test (as light elements such as aluminium), can test out now, test unsettled element (as the chlorine element etc.) originally, repeatability has reached testing laboratory's level now.
Compared with prior art, the beneficial effects of the utility model are: X ray and air are isolated fully and vacuum cavity is interior exists without any gas, thereby has reduced the line that detects of measuring light element, and has improved accuracy, the stability of measuring light element.
Description of drawings
Accompanying drawing is the utility model example structure synoptic diagram.
Description of reference numerals
1-vacuum (-tight) housing 2-test platform 3-X ray emission source 4-vacuum cavity 5-probe unit 6-exhaust unit 7-pressure acquiring unit 8-flexible pipe 9-seal groove
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model, so that the utility model person of ordinary skill in the field can implement the present invention easily.
Referring to accompanying drawing, the utlity model has the X ray spectral measurement device example structure synoptic diagram of air insulated function, vacuum cavity 4 is positioned at the below of test platform 2, test platform also promptly so-called " sample form spare ", sample is placed on the test platform 2, zone around sample on the test platform 2 is provided with seal groove 9, the O-ring seal of rubber material is set on the sealing groove 9, vacuum (-tight) housing 1 is placed on the sealing groove 9, vacuum cavity 4 links to each other with test platform 2 by sealing groove 9, will come with air insulated in vacuum (-tight) housing 1 is placed into seal groove 9 final vacuum cavitys 4 on the test platform 2.Exhaust unit 6 is installed on the vacuum cavity 4, and the effect of this exhaust unit 6 is to make vacuum cavity 4 internal pressures consistent with atmospheric pressure, and exhaust unit 6 is controlled by exhaust solenoid valve.Probe unit 5 is set on the vacuum cavity 4, and this probe unit 5 links to each other with X ray emissive source 3, is used to receive X ray.The pressure acquiring unit 7 that is made of pressure transducer is installed in vacuum cavity 4 bottoms, the convenient vacuum cavity 4 internal pressure information that obtain.Flexible pipe 8 is installed in vacuum cavity 4 bottoms, by this flexible pipe 8 vacuum cavity 4 is linked to each other with vacuum pump, and vacuum pump is used to extract out the vacuum cavity inner air by the solenoid control of bleeding.
Open and to show when vacuum pump is evacuated to 0kPa with vacuum cavity 4 internal pressures that air have been taken out to the greatest extent in the vacuum cavity 4,, form vacuum state in the local space thereby satisfied by calculating and experiment showed, that in 10 to 25 seconds vacuum cavities 4 be vacuum state.When vacuum cavity 4 internal pressures are pumped down to 0kPa, the solenoid closure of bleeding, vacuum pump quits work automatically, and changes the measuring samples state automatically over to.
Because of the O-ring seal good-toughness of rubber material, sealing effectiveness is good, therefore, in " U " type seal groove 9 by being provided with rubber seal and the vacuum cavity 4 that test platform 2 is connected only the vacuum state of coincidence measurement condition just can reach 30 to 45 minutes.
When need are opened vacuum (-tight) housing 1 replacing specimen, because at this moment pressure and the atmospheric pressure in the vacuum cavity 4 is unbalanced, at this moment by opening exhaust solenoid valve control exhaust unit 6 work by relay control, make vacuum cavity 4 internal pressures and atmospheric pressure equilibrium, otherwise will cause to take out sample because of opening vacuum (-tight) housing 1.
Claims (3)
1. X ray spectral measurement device with air insulated function, described device comprises test platform (2), X ray emissive source (3) and probe unit (5), sample is placed on the test platform (2), described probe unit (5) is connected to X ray emissive source (3), it is characterized in that: vacuum (-tight) housing (1) is set on the described test platform (2), and described test platform (2) links to each other with vacuum cavity (4), be respectively equipped with probe unit (5) on this vacuum cavity (4), exhaust unit (6) and pressure acquiring unit (7), vacuum cavity (4) links to each other with vacuum pump.
2. the X ray spectral measurement device with air insulated function according to claim 1, it is characterized in that: described test platform (2) is gone up around the zone of placing sample seal groove (9) is set, described vacuum (-tight) housing (1) is placed on the sealing groove (9), and vacuum cavity (4) links to each other with test platform (2) by sealing groove (9).
3. the X ray spectral measurement device with air insulated function according to claim 1 is characterized in that: described vacuum cavity (4) links to each other with vacuum pump by flexible pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200503411U CN202008470U (en) | 2011-02-25 | 2011-02-25 | X-ray spectral measurement device with air isolation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200503411U CN202008470U (en) | 2011-02-25 | 2011-02-25 | X-ray spectral measurement device with air isolation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202008470U true CN202008470U (en) | 2011-10-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200503411U Expired - Lifetime CN202008470U (en) | 2011-02-25 | 2011-02-25 | X-ray spectral measurement device with air isolation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202008470U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502386A (en) * | 2014-12-16 | 2015-04-08 | 韩晓朋 | X-ray fluorescence spectrum analyzer |
| CN112612049A (en) * | 2020-12-04 | 2021-04-06 | 中广核久源（成都）科技有限公司 | Distance-adjustable vacuum radioactivity detection device and detection method |
-
2011
- 2011-02-25 CN CN2011200503411U patent/CN202008470U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502386A (en) * | 2014-12-16 | 2015-04-08 | 韩晓朋 | X-ray fluorescence spectrum analyzer |
| CN112612049A (en) * | 2020-12-04 | 2021-04-06 | 中广核久源（成都）科技有限公司 | Distance-adjustable vacuum radioactivity detection device and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111012 |
|
| CX01 | Expiry of patent term |