CN203191313U - Tangential airflow regulating test section applied to laser irradiation measurement - Google Patents
Tangential airflow regulating test section applied to laser irradiation measurement Download PDFInfo
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- CN203191313U CN203191313U CN 201320195158 CN201320195158U CN203191313U CN 203191313 U CN203191313 U CN 203191313U CN 201320195158 CN201320195158 CN 201320195158 CN 201320195158 U CN201320195158 U CN 201320195158U CN 203191313 U CN203191313 U CN 203191313U
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- air flue
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Abstract
The utility model provides a tangential airflow regulating test section applied to laser irradiation measurement. The tangential airflow regulating test section applied to laser irradiation measurement comprises an air flue and a testing material placement region located at the air outlet of the air flue, wherein the air outlet direction of the air flue is parallel to the external surface of a testing material which is placed in the testing material placement region; an airflow shaping region is defined at the air outlet of the air flue; the inner diameter of the airflow shaping region is smaller than the inner diameter of the other region of the air flue; the airflow passage of the airflow shaping region is close to the testing material placement region. The tangential airflow regulating test section applied to laser irradiation measurement is characterized in that an air flow generated by an external air source is shaped through the air flue so that an air flow stable in both velocity and direction is output, the outlet of the air flue is close to the testing material placement region to ensure stable tangential airflow in the testing material placement region, and the specially designed airflow shaping region causes the airflow of the air flue to be close to the testing region, namely the testing material placement region, and realizes the good regulation of the velocity of the airflow.
Description
Technical field
The present invention relates to a kind of measurement mechanism, particularly relate to a kind of tangential gas flow adjusting test section that laser irradiation is measured that is applied to.
Background technology
The interaction of laser and material is all at first reflected and is absorbed incident laser energy from material, the initial reflection characteristic of material for laser light and laser work system (continuously, pulse, repetition etc.), optical maser wavelength, incident angle, and factors such as material category, surface appearance, radiation environment are relevant.In mechanisms such as Laser Processing, surface clean, the material that absorbs laser energy by various coupling mechanisms will produce responses such as calorifics, mechanics, chemistry, responses such as these physics of material, chemistry cause its surface nature to change, and will influence the reflection characteristic of material for laser light energy conversely.As seen, the factor that influences material reflectance varies in the laser irradiation process is a lot, and be that multiple influence factor is coupled often, so be difficult to from the angle of theory it is quantitatively described, at present, the main method of experiment that relies on is measured the situation of change of reflectivity in the material laser irradiation process.Therefore, development or improvement reflectivity experiment test device just become the work of outbalance in the laser technology application.
When there is air-flow in the detected materials surface, the absorption efficiency of material for laser light energy will be influenced, exert an influence to adding thermal effect at last, this is understood that qualitative, but how the effect of quantitative measurment air-flow is to the influence of LASER HEATING, and because the variation of the material reflectance parameter that this influence causes remains the problem of measuring material required solution of reflectivity parameter under the air-flow effect.
At present, from the document of openly reporting both at home and abroad, be applicable under the static environment to set up or to improve, material laser measuring apparatus for reflection index or measuring technology are main, be to form uniform tangential gas flow in the test material settlement during measurement, the flow generator that needs stable performance, wish during measurement pressing close to the constant homogeneous of test material irradiating surface place gas velocity, so-called tangential gas flow, be that airflow direction is parallel to the smooth material surface direction, have not yet to see the device that is exclusively used in the laser irradiation fields of measurement and tangential gas flow can be provided at the material measured surface.
Summary of the invention
For overcoming the technological deficiency that prior art exists, provide a kind of when the laser irradiation material experiment, form the device of tangential gas flow on the material irradiation surface, the utility model discloses a kind of tangential gas flow adjusting test section that laser irradiation is measured that is applied to.
The tangential gas flow that is applied to the laser irradiation measurement described in the utility model is regulated test section, comprises air flue and is positioned at the test material rest area that the air flue gas outlet is located; The outgassing direction of described air flue is parallel to the test material outside surface that is placed on the test material rest area, there is the air-flow shaping region at place, described air flue gas outlet, described air-flow shaping region internal diameter is less than other regional internal diameters of air flue, and the current path of described air-flow shaping region is close to described test material rest area.
Preferably, described air-flow shaping region internal diameter homogeneous.
Preferably, described air-flow shaping region current path front and rear part internal diameter is greater than air-flow shaping region current path middle part internal diameter.
Preferably, other zones of described air-flow shaping region and air flue are the streamlined transition.
Preferably, described test material rest area is open type.
Preferably, described test section also comprises for the bolt of fixedlying connected with surveying instrument or draw-in groove.
Preferably, described test material rest area is the plane of band circle or regular polygon groove.
The utility model proposes a kind of tangential gas flow adjusting test section that laser irradiation is measured that is applied to, the air-flow that external source of the gas is produced is by after the air flue shaping, output speed and direction be more stable air-flow all, air flue outlet and test material rest area next-door neighbour, guarantee the stable tangential gas flow of test material rest area, it is the test material rest area that the air-flow shaping region of particular design makes the air flue air-flow not only be close to pilot region, and gas velocity has been realized regulating preferably.The utility model is fixedlyed connected design with air flow regulator and test material rest area are integrated, guarantees that airflow direction and outlet meet requirement of experiment and need not to repeat to adjust, and has reduced the preceding preliminary work amount of experiment.
Description of drawings
Fig. 1 is the synoptic diagram of the utility model embodiment 1;
Fig. 2 is the synoptic diagram of the utility model embodiment 1;
Reference numeral is 1. air flues, 2. semielliptical reflectometers, 3. air flue air intake openings, 4. air flue gas outlets, 5. air-flow shaping regions, 6. test material rest areas, 7. semielliptical reflectometer focuses among each figure.
Embodiment
A kind of tangential gas flow that is applied to the laser irradiation measurement is regulated test section (hereinafter to be referred as test section), comprises air flue and is positioned at the test material rest area that the air flue gas outlet is located; The outgassing direction of described air flue 1 is parallel to the test material outside surface that is placed on test material rest area 6,
There is air-flow shaping region 5 at 4 places, described air flue gas outlet, and described air-flow shaping region internal diameter is less than other regional internal diameters of air flue, and the current path of described air-flow shaping region is close to described test material rest area.
Test section described in the utility model comprises air flue, the entrance of air flue is connected with source of the gas during use, the air flue outlet is used for the used tangential gas flow of output experiment, the test material rest area is positioned at the air flue exit, when making laser irradiation, obtain stable tangential gas flow nearby at the irradiation face, the outgassing direction of air flue is parallel to the test material outside surface that is placed on test material rest area 6, so-called outside surface is test material one side outwardly, irradiation face and the reflecting surface of laser when just testing.
There is the air-flow shaping region at the place, gas outlet of test section air flue, the air-flow shaping region is the current path of one section relative other regions contract of air flue of internal diameter, be that air-flow shaping region internal diameter is less than other regional internal diameters of air flue, and the current path of air-flow shaping region is close to test material rest area one side, so that test material irradiation face is obtained uniform air flow.Other zones of air-flow shaping region and air flue are preferably streamlined transition and are connected, to avoid air turbulence in the air flue.
Test material rest area 6 is used for placing test material when experiment, can be of extending out along the air-flow trend plane with the seamless link of air flue sidewall, groove is set on the plane, and groove shapes can be that circle, rectangle and regular polygon are to place difform test material.The test material rest area is preferably the open type design, and namely test material rest area surface does not have cover materials such as air flue sidewall, makes things convenient for the laser direct irradiation on test material.
Test section can be with metal manufacturings such as stainless steels, for ease of using, is used for the bolt that is connected with surveying instrument or draw-in groove etc. on the test section in addition to connect firmly structure.
As Fig. 1 embodiment 1 of the present utility model is shown, test section and semielliptical reflectometer are installed together during test, air-flow enters from the air flue air intake opening, described air flue inwall near the air flue exit time is streamlined contraction internal diameter, form the air flue shaping region, air-flow shaping region internal diameter shrinks the back inwall and extends in parallel along airflow direction, makes air-flow shaping region internal diameter homogeneous.According to the wind-tunnel design concept, when gas possesses certain stagnation pressure and jet pipe form (supersonic airstream just needs), and when satisfying traffic requirement, can form needed stable uniform air flow at test section.Adopt the air-flow shaping region of this shape, can form stable subsonic speed air-flow in the air flue exit.Semielliptical reflectometer focus drops on the test material outside surface of test material rest area, after tangential gas flow is stablized in the formation of test material surface, with laser this focus of directive outside the semielliptical reflectometer, can begin to measure.
As Fig. 2 embodiment 2 of the present utility model is shown, is with the difference of embodiment 1, described air-flow shaping region current path front and rear part internal diameter is greater than air-flow shaping region current path middle part internal diameter.The air-flow shaping region shape of embodiment 2 can form stable supersonic airstream in the air flue exit.
The utility model proposes a kind of tangential gas flow adjusting test section that laser irradiation is measured that is applied to, the air-flow that external source of the gas is produced is by after the air flue shaping, output speed and direction be more stable air-flow all, air flue outlet and test material rest area next-door neighbour, guarantee the stable tangential gas flow of test material rest area, it is the test material rest area that the air-flow shaping region of particular design makes the air flue air-flow not only be close to pilot region, and gas velocity has been realized regulating preferably.The utility model is fixedlyed connected design with air flow regulator and test material rest area are integrated, guarantees that airflow direction and outlet meet requirement of experiment and need not to repeat to adjust, and has reduced the preceding preliminary work amount of experiment.
Previously described is each preferred embodiment of the present invention; preferred implementation in each preferred embodiment is if not obviously contradictory or be prerequisite with a certain preferred implementation; each preferred implementation stack combinations is arbitrarily used; concrete parameter among described embodiment and the embodiment only is the invention proof procedure for clear statement inventor; be not in order to limit scope of patent protection of the present invention; scope of patent protection of the present invention still is as the criterion with its claims; the equivalent structure that every utilization instructions of the present invention and accompanying drawing content are done changes, and in like manner all should be included in protection scope of the present invention.
Claims (7)
1. one kind is applied to the tangential gas flow adjusting test section that laser irradiation is measured, and comprises air flue and is positioned at the test material rest area (6) that the air flue gas outlet is located; The outgassing direction of described air flue is parallel to the test material outside surface that is placed on test material rest area (6), it is characterized in that:
Air-flow shaping region (5) has been located in described air flue gas outlet (4), and described air-flow shaping region (5) internal diameter is less than other regional internal diameters of air flue, and the current path of described air-flow shaping region is close to described test material rest area.
2. the tangential gas flow that is applied to the laser irradiation measurement according to claim 1 is regulated test section, it is characterized in that: described air-flow shaping region (5) internal diameter homogeneous.
3. the tangential gas flow that is applied to the laser irradiation measurement according to claim 1 is regulated test section, it is characterized in that: described air-flow shaping region (5) current path front and rear part internal diameter is greater than air-flow shaping region current path middle part internal diameter.
4. the tangential gas flow that is applied to the laser irradiation measurement according to claim 1 is regulated test section, it is characterized in that: other zones of described air-flow shaping region (5) and air flue are the streamlined transition.
5. the tangential gas flow that is applied to the laser irradiation measurement according to claim 1 is regulated test section, and it is characterized in that: described test material rest area (6) is open type.
6. the tangential gas flow that is applied to the laser irradiation measurement according to claim 1 is regulated test section, and it is characterized in that: described test section also comprises for the bolt of fixedlying connected with surveying instrument or draw-in groove.
7. the tangential gas flow that is applied to the laser irradiation measurement according to claim 1 is regulated test section, it is characterized in that: described test material rest area (6) is the plane of band circle or regular polygon groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320195158 CN203191313U (en) | 2013-04-18 | 2013-04-18 | Tangential airflow regulating test section applied to laser irradiation measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320195158 CN203191313U (en) | 2013-04-18 | 2013-04-18 | Tangential airflow regulating test section applied to laser irradiation measurement |
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| Publication Number | Publication Date |
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| CN203191313U true CN203191313U (en) | 2013-09-11 |
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| CN 201320195158 Expired - Fee Related CN203191313U (en) | 2013-04-18 | 2013-04-18 | Tangential airflow regulating test section applied to laser irradiation measurement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731902A (en) * | 2018-05-30 | 2018-11-02 | 西北核技术研究所 | Laser combines the pilot system and method for damage effect with airflow on surface |
-
2013
- 2013-04-18 CN CN 201320195158 patent/CN203191313U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731902A (en) * | 2018-05-30 | 2018-11-02 | 西北核技术研究所 | Laser combines the pilot system and method for damage effect with airflow on surface |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20150418 |
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| EXPY | Termination of patent right or utility model |