CN201600339U - Filtering collimator combined device of X-ray fluorescence spectrometer - Google Patents
Filtering collimator combined device of X-ray fluorescence spectrometer Download PDFInfo
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- CN201600339U CN201600339U CN2010200469859U CN201020046985U CN201600339U CN 201600339 U CN201600339 U CN 201600339U CN 2010200469859 U CN2010200469859 U CN 2010200469859U CN 201020046985 U CN201020046985 U CN 201020046985U CN 201600339 U CN201600339 U CN 201600339U
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Abstract
The utility model discloses a filtering collimator combined device of an X-ray fluorescence spectrometer, which belongs to the spectrum measuring field and comprises a filtering layer, a collimating layer, a filtering layer drive member and a collimating layer drive member; main bodies of the filtering layer and the collimating layer are inverted hollow round tables and are concentrically sleeved; a plurality of through holes are uniformly and symmetrically arranged on the tapered surface of the round table on the main body; through holes on the collimating layer are collimating holes with multiple apertures; the filtering layer is driven by the filtering layer drive member; and the collimating layer is driven by the collimating layer drive member and respectively does relative rotation around a rotation center. The filter and the collimating holes are converted and combined in the filtering collimator combined device so that it is convenient to replace the filter and the collimator in the X-ray fluorescence spectrometer in the sample testing process; the filtering collimator combined device for the X-ray fluorescence spectrometer has advantages of high safety and practicability, wide measuring range, and compact structure and small volume owing to combination of the filtering layer and the collimating layer.
Description
Technical field:
The utility model belongs to field of analytic instrument, relates to a kind of parts that are assemblied in the Xray fluorescence spectrometer, is meant a kind of optical filtering collimator arrangement device of new X ray fluorescence spectrometer especially.
Background technology:
In the sample xrf analysis, Xray fluorescence spectrometer is analytical instrument commonly used, and optical filter and collimating apparatus are the parts of instrument indispensability.
The main effect of optical filter is to filter the X ray that influences measuring accuracy in the sample analysis process, at different samples and analytical element, rationally selects different optical filters for use, can increase substantially the measuring accuracy of instrument.
The main effect of collimating apparatus is to retrain the locus of X-ray beam and the physical dimension of X-ray beam, thereby to being located and confirm in the geometric position of analyzed sample; When analyzing the contained different element of different samples or sample, should select the collimating apparatus of different geometrical size.Simultaneously, collimating apparatus rational in infrastructure can also reduce disturbs the influence of spectral line to Instrument measuring precision, raising instrumental analysis result's accuracy.
Existing Xray fluorescence spectrometer automatic filter structure mostly is the plane filter disc dish rotation that driven by motor has a plurality of holes, thereby realizes the conversion of multiple optical filter.The filter disc dish mostly is the flat circle plate-like, volume is bigger, complicated on spatial placement, simultaneously, in order to guarantee enough bearing accuracies, very high to the requirement of material, structure and machining accuracy, be unfavorable for the realization of robotization control procedure, also brought thus the rational many restrictions of spectrometer light path layout, directly had influence on the measuring accuracy of spectrometer.
Existing Xray fluorescence spectrometer collimating apparatus mostly is manual replacing collimating apparatus, or different size collimating apparatus linear array, drags to-and-fro movement by motor, realizes the conversion of collimating apparatus.These two kinds of conversion regimes all exist complex structure, volume is big, bearing accuracy is low problem, and even more serious is that existing collimating apparatus has limited the rational deployment of spectrometer light path, directly has influence on the measuring accuracy of spectrometer.
The utility model content:
At the problems referred to above, fundamental purpose of the present utility model is to provide a kind of optical filtering collimator arrangement device of Xray fluorescence spectrometer, its compact conformation, volume are little, simple in structure, practical reliable, realize control automatically easily, and can shorten ray optical path greatly, improve the measuring accuracy of instrument.
For achieving the above object, the utility model by the following technical solutions:
A kind of optical filtering collimator arrangement device of Xray fluorescence spectrometer, comprise filter layer, collimation layer, filter layer driven unit, collimation layer driven unit, wherein, the main body of described filter layer and collimation layer is is inverted hollow round platform and concentric suit, lay a plurality of through holes respectively symmetrically on the round platform conical surface of the main body of described filter layer and collimation layer, the through hole of described collimation layer is the multiple aperture collimating aperture; Described filter layer is driven by the filter layer driven unit, and the collimation layer is driven and relatively rotated around rotation center respectively by collimation layer driven unit.
In the above optical filtering collimator arrangement device, filter layer comprises the optical filtering pedestal that is laid with described through hole, the spring bearing that is installed in a plurality of optical filters in the described through hole and is fixed on concentric installation on the optical filtering pedestal.
Collimation layer comprises the collimation body that is laid with described through hole and is fixed on connection bearing on the collimation body, the concentric installation of optical filtering pedestal of described connection bearing and filter layer; Described collimation layer driven unit comprises motor, driven wheel, and described motor drives the collimation layer by driven wheel and rotates.
Described optical filtering pedestal is is inverted the hollow round table structure; The round platform conical surface of described optical filtering pedestal, evenly and the optical filtering hole of be symmetrically distributed described a plurality of and round platform Surface Vertical; One end of described optical filtering pedestal extends step and is connected with described spring bearing, and the other end extends in order to cooperate the step of described connection bearing.
Described collimation body is the inverted round table structure; The round platform conical surface of described collimation body, evenly and the collimating aperture of a plurality of multiple apertures that are symmetrically distributed, and with the round platform Surface Vertical; Described collimation body is provided with and is used for installing connection bearing to connect the step of optical filtering pedestal.
The round platform drift angle of described optical filtering pedestal equates with the round platform drift angle of described collimation body.
Above-described optical filtering collimator arrangement device, during work, the axis in a certain optical filtering hole of described optical filtering pedestal is concentric with the axis of a certain collimating aperture of described collimation body; The axis in another optical filtering hole of described optical filtering pedestal and this optical filtering hole symmetry is concentric with the axis with another collimating aperture this collimating aperture symmetry described collimation body.
In the described optical filtering collimator arrangement device, the stepped outer surface of described optical filtering pedestal lower end and described collimation body lower end step are equipped with the pillar that is used to locate zero-bit.
In the above-described optical filtering collimator arrangement device, described filter layer driven unit comprises motor, driven wheel; The driven gear that is meshed with this driving gear is set on the described optical filtering pedestal.The pedestal drive motor is fixed on the frame, pedestal driving gear and pedestal drive motor be connected and with the passive gear ring engagement of optical filtering pedestal, drive the rotation of optical filtering pedestal during the rotation of pedestal drive motor.Described collimation layer driven unit comprises motor, driven wheel; The driven gear that is meshed with this driving gear is set on the described collimation body.The collimating apparatus drive motor is fixed on the frame, and collimating apparatus driving gear and collimating apparatus drive motor are connected and mesh with the passive gear ring that collimates body, drive the collimation body during rotation of collimating apparatus drive motor and rotate.
Adopt technique scheme, circular platform type filter layer and circular platform type collimation layer are inverted a suit and are cooperated, have simple in structure, compact, the advantage that volume is little.And the number of combinations that filters and collimate is many, and measurable range is wide.In addition, the control of this device is reliable, and measuring accuracy improves, and has bigger application prospect.
Description of drawings:
Fig. 1 is the axonometric drawing of the utility model optical filtering collimator arrangement device
Fig. 2 is the axonometric drawing of optical filtering pedestal in the utility model
Fig. 3 is the shaft side figure of collimation body in the utility model
Cross-sectional schematic when Fig. 4 is the work of the utility model optical filtering collimator arrangement device
Embodiment:
In order to describe structure of the present utility model, characteristics and effect in detail, now lift following better embodiment and conjunction with figs. and be described as follows.
The utility model is a kind of optical filtering collimator arrangement device that is applicable to Xray fluorescence spectrometer, and it can be divided into filter layer, collimation layer and driven unit separately on function, preferably also comprise detection and location device etc.
Shown in Fig. 1,4, filter layer comprises: optical filtering pedestal 1, a plurality of optical filter 6, spring bearing 7; The filter layer driven unit comprises: pedestal driving gear 3, pedestal drive motor 9 etc.; The collimation layer comprises: collimation body 2, connection bearing 8; Collimation layer driven unit comprises: collimating apparatus driven gear 4, collimating apparatus driving gear 5, collimating apparatus drive motor 10 etc.Spring bearing 7 and connection bearing 8 can be rolling bearing or sliding bearing, are example with the rolling bearing among the figure.The detection and location device is known optoelectronic switch pick-up unit, does not give providing among the figure.
Shown in Fig. 1,2,4, the agent structure of optical filtering pedestal 1 is an inverted round table type, is hollow structure, and drift angle is 90 ° (the round platform drift angle can change in 0～180 ° of scope).Ring-shaped step 1b is extended in round platform upper end, is used for installing spring bearing 7 and is fixed on the frame by spring bearing 7, and ring-shaped step 1d is also extended in order to overlap a solid connection bearing 8 (referring to Fig. 4) in the round platform lower end.The main part of optical filtering pedestal 1 is the conical surface of round platform, evenly and be symmetrically distributed with a plurality of even number optical filtering hole 1a, and vertical with the round platform conical surface, the hole 1a that herein filters can be designed as even number (among the figure being 12).The effect of optical filtering hole 1a symmetric arrangement is when some holes during to the normal incidence ray, just in time aligns emergent ray with another Kong Ze of this hole symmetry.Optical filtering hole 1a is a step through-hole, is used for installing optical filter 6.Step 1b part in optical filtering pedestal 1 round platform upper end also is provided with gear ring 1c.At the step 1d of round platform lower end outside surface, be provided with pillar 1e, be used for when filter layer rotates to detection and location device signal framing zero-bit.
Shown in Fig. 3,4, the agent structure of collimation body 2 also is an inverted round table type, and drift angle is 90 ° (the round platform drift angle can change in 0～180 ° of scope). Step 2b, 2c are also extended in the round platform lower end, and step 2b is used for installing connection bearing 8 and is fixed on the step 1d internal face of optical filtering pedestal 1 and concentric with optical filtering pedestal 1 by connection bearing 8, the step 2c place collimating apparatus driven gear 4 that is connected.In step 2c lower surface, be provided with pillar 2d, be used for when the rotation of collimation layer to detection and location device signal framing zero-bit.The main part of collimation body 2 is the conical surface of round platform, evenly and be symmetrically distributed with the collimating aperture 2a of a plurality of even number multiple diameter, be used for the ray by it is collimated, collimating aperture 2a is vertical with the round platform conical surface, and collimating aperture 2a can be designed as even number (among the figure being 10) herein.The effect of collimating aperture 2a symmetric arrangement is when some holes during to the normal incidence ray, just in time aligns emergent ray with another Kong Ze of this hole symmetry.
When filter layer during with the relative rotation of collimation layer, make some collimating aperture 2a just in time align some optical filterings hole 1a, another collimating aperture of while and this collimating aperture 2a symmetry also just in time aligns another optical filtering hole with this optical filtering hole 1a symmetry.At this moment, remaining collimating aperture 2a may be (when collimating aperture 2a quantity equates with optical filtering hole 1a quantity) that aligns with remaining optical filtering hole 1a, also may be (when collimating aperture 2a quantity and optical filtering hole 1a quantity are unequal) that does not align.Promptly remaining hole all aligns when the quantity of collimating aperture 2a equates with the quantity of optical filtering hole 1a, can only guarantee that when quantity does not wait above-mentioned two symmetrical groups hole aligns.The quantity of the quantity of collimating aperture 2a and optical filtering hole 1a does not wait among the above embodiment, thus can only there be the two symmetrical groups hole to align simultaneously, but still can satisfy the required optical system for testing of Xray fluorescence spectrometer.
As shown in Figure 1, the pedestal drive motor 9 of filter layer is fixed on the frame, and pedestal driving gear 3 is connected with pedestal drive motor 9 and with optical filtering pedestal 1 on gear ring 1c engagement, drive 1 rotation of optical filtering pedestal during 9 rotations of pedestal drive motor.
As shown in Figure 1, collimating apparatus drive motor 10 is fixed on the frame, and collimating apparatus driving gear 5 is connected with collimating apparatus drive motor 10 and mesh drive collimation body 2 rotations during 10 rotations of collimating apparatus drive motor with the collimating apparatus driven gear 4 that is installed on the collimation body 2.
During work, pedestal drive motor 9 drives the filter layers rotation, makes that required optical filtering hole 1a has 12 working positions to the normal incidence ray on the optical filtering pedestal 1; Collimating apparatus drive motor 10 drives the rotation of collimation layer, makes collimation body 2, goes up required collimating aperture 2a also to the normal incidence ray, has 10 working positions.Go out 12 * 10 totally 120 kinds of position groupings so this device is capable of being combined, 120 stations are promptly arranged.As shown in Figure 4, this device is in a certain station, at this moment, the required station of Xray fluorescence spectrometer, X-ray tube 20, detector 30, sample are just in time formed the optical system for testing system of an Xray fluorescence spectrometer, can carry out analyzing and testing to specific sample or element-specific that this station is suitable for.Need to prove that during for certain sample of detection or element, optical filter 6 not necessarily promptly in certain optical filtering hole, may not need to install optical filter.In addition, neither corresponding with it sample that is used for measuring or element all be arranged each station.
Pillar 1e that mentions in the above-mentioned introduction and 2d are respectively collimation layer and filter layer initial zeroing fixture separately, each working position of collimation layer and filter layer be by measure the anglec of rotation of drive motor separately extrapolate again collimate layer and the anglec of rotation of filter layer to locate each working position.Herein, pedestal drive motor 9, collimating apparatus drive motor 10 are all stepper motor, by being connected with opertaing device (for example computing machine), accurately control its rotation.
In the filtering collimator combined device of the present utility model, the round platform part concentric locking collar of collimation body is contained in the round platform hollow part that the optical filtering pedestal is, forms an assembly. This assembly just in time is in the below of sample when installing, thus its not only compact conformation, volume are little, filter and the combination of collimation many, and drive simply, be convenient to control. Can improve like this scope of application of spectrometer, can improve control accuracy again, have good reliability, advantage that measuring accuracy is high.
Claims (10)
1. the optical filtering collimator arrangement device of an Xray fluorescence spectrometer, comprise filter layer, collimation layer, filter layer driven unit, collimation layer driven unit, it is characterized in that, the main body of described filter layer and collimation layer is is inverted hollow round platform and concentric suit, lay a plurality of through holes respectively symmetrically on the round platform conical surface of the main body of described filter layer and collimation layer, the through hole of described collimation layer is the multiple aperture collimating aperture; Described filter layer is driven by the filter layer driven unit, and the collimation layer is driven and relatively rotated around rotation center respectively by collimation layer driven unit.
2. optical filtering collimator arrangement device as claimed in claim 1 is characterized in that, described filter layer comprises the optical filtering pedestal that is laid with described through hole, the spring bearing that is installed in a plurality of optical filters in the described through hole and is fixed on concentric installation on the optical filtering pedestal.
3. optical filtering collimator arrangement device as claimed in claim 1 or 2, it is characterized in that, described collimation layer comprises the collimation body that is laid with described through hole and is fixed on connection bearing on the collimation body, the concentric installation of optical filtering pedestal of described connection bearing and filter layer; Described collimation layer driven unit comprises motor, driven wheel, and described motor drives the collimation layer by driven wheel and rotates.
4. optical filtering collimator arrangement device as claimed in claim 3 is characterized in that, described optical filtering pedestal is is inverted the hollow round table structure; The round platform conical surface of described optical filtering pedestal, evenly and the optical filtering hole of be symmetrically distributed described a plurality of and round platform Surface Vertical; One end of described optical filtering pedestal extends step and is connected with described spring bearing, and the other end extends in order to cooperate the step of described connection bearing.
5. optical filtering collimator arrangement device as claimed in claim 3 is characterized in that described collimation body is the inverted round table structure; The round platform conical surface of described collimation body, evenly and the collimating aperture of a plurality of multiple apertures that are symmetrically distributed, and with the round platform Surface Vertical; Described collimation body is provided with and is used for installing connection bearing to connect the step of optical filtering pedestal.
6. as claim 4 or 5 described optical filtering collimator arrangement devices, the round platform drift angle of described optical filtering pedestal equates with the round platform drift angle of described collimation body.
7. described optical filtering collimator arrangement device as claimed in claim 6 is characterized in that the axis in a certain optical filtering hole of described optical filtering pedestal is concentric with the axis of a certain collimating aperture of described collimation body; The axis in another optical filtering hole of described optical filtering pedestal and this optical filtering hole symmetry is concentric with the axis with another collimating aperture this collimating aperture symmetry described collimation body.
8. optical filtering collimator arrangement device as claimed in claim 7 is characterized in that, the stepped outer surface of described optical filtering pedestal lower end and described collimation body lower end step are equipped with the pillar that is used to locate zero-bit.
9. optical filtering collimator arrangement device as claimed in claim 2 is characterized in that described filter layer driven unit comprises motor, driven wheel; The driven gear that is meshed with this driving gear is set on the described optical filtering pedestal.
10. optical filtering collimator arrangement device as claimed in claim 3 is characterized in that, described collimation layer driven unit comprises motor, driven wheel; The driven gear that is meshed with this driving gear is set on the described collimation body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200469859U CN201600339U (en) | 2010-01-20 | 2010-01-20 | Filtering collimator combined device of X-ray fluorescence spectrometer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200469859U CN201600339U (en) | 2010-01-20 | 2010-01-20 | Filtering collimator combined device of X-ray fluorescence spectrometer |
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| CN201600339U true CN201600339U (en) | 2010-10-06 |
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| CN2010200469859U Expired - Lifetime CN201600339U (en) | 2010-01-20 | 2010-01-20 | Filtering collimator combined device of X-ray fluorescence spectrometer |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914556A (en) * | 2012-10-23 | 2013-02-06 | 东莞市邦鑫伟业仪器有限公司 | Optical filter system for energy dispersion X fluorescence spectrophotometer |
| CN102928450A (en) * | 2012-10-23 | 2013-02-13 | 东莞市邦鑫伟业仪器有限公司 | Beam-splitting vacuum chamber for fixed channel long-dispersion X fluorescence spectrophotometer |
| CN102928991A (en) * | 2012-11-01 | 2013-02-13 | 江苏大学 | Light beam collimator |
| WO2013075648A1 (en) * | 2011-11-25 | 2013-05-30 | Mu Zhiping | Collimating device for emission tomography |
| CN105551559A (en) * | 2016-02-16 | 2016-05-04 | 苏州爱因智能设备有限公司 | Projecting-range-adjustable collimator |
| CN105788694A (en) * | 2014-12-24 | 2016-07-20 | 丹东市科大仪器有限公司 | Built-in disc type optical filter switching device of X-ray beam limiter |
| CN107576681A (en) * | 2017-09-11 | 2018-01-12 | 江苏天瑞仪器股份有限公司 | It is a kind of to be used for the light-blocking member with more collimator devices |
| CN107622808A (en) * | 2017-09-11 | 2018-01-23 | 江苏天瑞仪器股份有限公司 | A kind of porous light transparent member |
| CN107655919A (en) * | 2017-09-11 | 2018-02-02 | 江苏天瑞仪器股份有限公司 | A kind of location structure for the more collimaters of X fluorescence spectrometer |
| CN108814637A (en) * | 2018-05-21 | 2018-11-16 | 苏州达影医疗设备有限公司 | Breast X-ray machine filter disc apparatus for automatic change and breast X-ray machine |
| CN109450166A (en) * | 2018-12-28 | 2019-03-08 | 江苏天瑞仪器股份有限公司 | A kind of high class gear transmission automatic switching control equipment |
| CN110404181A (en) * | 2018-04-26 | 2019-11-05 | 瑞地玛医学科技有限公司 | A kind of radiotherapy equipment and its beam-defining clipper |
| CN111879803A (en) * | 2020-07-03 | 2020-11-03 | 三峡大学 | Soil heavy metal content detection device and detection method |
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2010
- 2010-01-20 CN CN2010200469859U patent/CN201600339U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013075648A1 (en) * | 2011-11-25 | 2013-05-30 | Mu Zhiping | Collimating device for emission tomography |
| CN102914556A (en) * | 2012-10-23 | 2013-02-06 | 东莞市邦鑫伟业仪器有限公司 | Optical filter system for energy dispersion X fluorescence spectrophotometer |
| CN102928450A (en) * | 2012-10-23 | 2013-02-13 | 东莞市邦鑫伟业仪器有限公司 | Beam-splitting vacuum chamber for fixed channel long-dispersion X fluorescence spectrophotometer |
| CN102928991A (en) * | 2012-11-01 | 2013-02-13 | 江苏大学 | Light beam collimator |
| CN105788694A (en) * | 2014-12-24 | 2016-07-20 | 丹东市科大仪器有限公司 | Built-in disc type optical filter switching device of X-ray beam limiter |
| CN105551559A (en) * | 2016-02-16 | 2016-05-04 | 苏州爱因智能设备有限公司 | Projecting-range-adjustable collimator |
| CN107576681A (en) * | 2017-09-11 | 2018-01-12 | 江苏天瑞仪器股份有限公司 | It is a kind of to be used for the light-blocking member with more collimator devices |
| CN107622808A (en) * | 2017-09-11 | 2018-01-23 | 江苏天瑞仪器股份有限公司 | A kind of porous light transparent member |
| CN107655919A (en) * | 2017-09-11 | 2018-02-02 | 江苏天瑞仪器股份有限公司 | A kind of location structure for the more collimaters of X fluorescence spectrometer |
| CN107655919B (en) * | 2017-09-11 | 2020-04-03 | 江苏天瑞仪器股份有限公司 | Positioning structure for multiple collimators of X-ray fluorescence spectrometer |
| CN110404181A (en) * | 2018-04-26 | 2019-11-05 | 瑞地玛医学科技有限公司 | A kind of radiotherapy equipment and its beam-defining clipper |
| CN108814637A (en) * | 2018-05-21 | 2018-11-16 | 苏州达影医疗设备有限公司 | Breast X-ray machine filter disc apparatus for automatic change and breast X-ray machine |
| CN108814637B (en) * | 2018-05-21 | 2021-09-24 | 达影医疗(中山)有限公司 | Automatic filter disc replacing device of mammary gland X-ray machine and mammary gland X-ray machine |
| CN109450166A (en) * | 2018-12-28 | 2019-03-08 | 江苏天瑞仪器股份有限公司 | A kind of high class gear transmission automatic switching control equipment |
| CN111879803A (en) * | 2020-07-03 | 2020-11-03 | 三峡大学 | Soil heavy metal content detection device and detection method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101006 |