CN201622253U - Wheel disc type light-filtering collimating device of X-ray fluorescence spectrometer - Google Patents
Wheel disc type light-filtering collimating device of X-ray fluorescence spectrometer Download PDFInfo
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- CN201622253U CN201622253U CN2010200469365U CN201020046936U CN201622253U CN 201622253 U CN201622253 U CN 201622253U CN 2010200469365 U CN2010200469365 U CN 2010200469365U CN 201020046936 U CN201020046936 U CN 201020046936U CN 201622253 U CN201622253 U CN 201622253U
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Abstract
The utility model provides a wheel disc type light-filtering collimating device of an X-ray fluorescence spectrometer. The device comprises light-filtering collimator components and driving components, wherein the light-filtering collimator components comprise a collimator body, a plurality of primary light filters, a plurality of primary collimating bushings, a plurality of secondary light filters and a plurality of secondary collimating bushings; the collimator body adopts the structure of a wheel disc; a plurality of stepped holes, through which X rays can penetrate, are distributed on the surface of the excircle of the wheel disc; the collimating bushings are packed into the stepped holes; and the light filters are arranged between the steps of the stepped holes and the collimating bushings. The device provided by the utility model combines the light filters with the collimating bushings with different pore diameters, thereby having the advantages of compact structure and small volume; and the assembled X-ray fluorescence spectrometer with simple structure, few components, simple and reliable control and lower cost has a wider application prospect.
Description
Technical field:
The utility model belongs to field of analytic instrument, relates to a kind of critical piece that is used for Xray fluorescence spectrometer, is meant a kind of optical filtering and collimation composite set 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 critical pieces 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 same sample, should select the collimating apparatus of corresponding physical dimension.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, also higher 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 Wheel-type optical filtering collimator apparatus 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 Wheel-type optical filtering collimator apparatus of Xray fluorescence spectrometer, combination have the optical filtering part and the collimating apparatus part of Xray fluorescence spectrometer, comprise optical filtering collimator assembly and driven unit; Described optical filtering collimator assembly comprises collimation body, an a plurality of optical filter, a plurality of lining, a plurality of secondary optical filter and a plurality of secondary collimation lining of once collimating; Wherein:
The collimation body is a wheeling disk structure, at wheel disc outer round surface a plurality of stepped holes that are used for passing X ray that distributing, each hole by symmetry, axes intersect go into perforation and perforation hole two parts are formed, and go into perforation and perforation hole extends through respectively to the wheel disc two sides;
Described lining, the secondary collimation lining that once collimates is all cylindrical sleeve, and its external diameter, length cooperate with the upper end of stepped hole respectively, and the internal diameter size designs by tested element requirement;
A described optical filter is installed in the perforation step and once collimates position between the lining, and the secondary optical filter is installed in position between perforation hole step and the secondary collimation lining.
Above-described Wheel-type optical filtering collimator apparatus is describedly gone into perforation and perforation hole two axial lines to intersect angular range is 0～180 °, and preferred, two axial lines is vertical, and promptly the angle of cut is 90 °.
Described driven unit comprises motor, driving gear and driven gear, and driven gear is fixed on the collimation body wheel disc central shaft, driven by motor driving gear, driving gear and driven gear engagement.
Described collimation body is processed with the counterbore perpendicular to this side at the center, a side into perforation of being provided with, also be provided with shooting hole, at least one place on the external circular surfaces of collimating apparatus, shooting hole and the perforation of described center counterbore.
Above-described Wheel-type optical filtering collimator apparatus, also comprise the detection and location assembly, side flange at the collimation body is processed with a plurality of transmissive slits, and slot number and position are corresponding with the stepped hole and the shooting hole of collimation body sheave surface, and the detection and location assembly also comprises the optoelectronic switch pick-up unit.Described driven gear is provided with the zero-bit reference column.
Described collimation body is processed with the groove that cooperates with the socket cap of Xray fluorescence spectrometer detector in a side that is provided with perforation hole.
The utility model provides a kind of Xray fluorescence spectrometer in addition, comprise the X-ray pipe, filter disc dish, collimating apparatus, the detector of a plurality of optical filters is housed and fixes the framework and the shell of these parts, wherein filter disc dish and collimator arrangement are above-described Wheel-type optical filtering collimator apparatus.
Adopt technique scheme, wheel dish type collimating apparatus body collimates lining (once, secondary) with a plurality of optical filters (once, secondary) and different apertures and combines, and has compact conformation, the advantage that volume is little.In addition,, can realize the one-time-reach-place of optical filter and the collimation cover combination of different apertures, have the advantage that control mode is simple, reliability is high, measuring accuracy improves by once rotating.This apparatus structure is simple, amount of parts is few, controls simple and reliablely, and cost reduces, and has bigger application prospect.
Description of drawings
Fig. 1 is the axonometric drawing of the utility model Wheel-type optical filtering collimator apparatus
Fig. 2 is a collimating apparatus axon mapping in the utility model
Fig. 3 is the collimation body cut-open view in the utility model
Cross-sectional schematic when Fig. 4 is the utility model work
Embodiment
In order to describe structure of the present utility model, characteristics and effect in detail, existing following preferred embodiment of act and conjunction with figs. are described as follows.
The Wheel-type optical filtering collimator apparatus of a kind of Xray fluorescence spectrometer of the utility model, mainly be that the optical filtering of Xray fluorescence spectrometer part and collimating apparatus partly are combined into one, at least comprise optical filtering collimator assembly and driven unit, preferably also comprise the detection and location assembly.
As Fig. 1, shown in Figure 4, the utility model optical filtering collimator apparatus comprises collimation body 1, a plurality of lining 2, a plurality of secondary collimation lining 3, an a plurality of optical filter 8, a plurality of secondary optical filter 9, driven gear 7, driving gear 5 and motor 4, screw 6 etc. of once collimating.Wherein, collimation body 1, a plurality of lining 2, a plurality of secondary collimation lining 3, an a plurality of optical filter 8, a plurality of secondary optical filter 9 composition optical filtering collimator assemblies of once collimating; Driven gear 7, driving gear 5 and motor 4 etc. are formed driven unit.
As Fig. 2, shown in Figure 3, collimation body 1 is a wheeling disk structure, in the distributing hole that is used for passing X ray of some quantity of wheel disc outer round surface, what each hole was divided into diagonal cross goes into perforation 1a and perforation hole 1b two parts, and going into perforation and perforation hole extends through respectively to wheel disc two sides A, B, as showing among Fig. 2 that a plurality of perforation 1a of going into extend to the A side and are used for by the incident ray, a plurality of perforation hole 1b extend to the B side and are used for by the emergent ray behind sample scattering.Going into perforation 1a and perforation hole 1b is one group, forms one and detects station, its axes intersect, symmetry and preferably vertical 90 ° of angles.Hole 1a, 1b are stepped hole, are used at step place installation optical filter.
During Xray fluorescence spectrometer was installed, collimation body 1 side A can be connected to X-ray tube 30 by a simple collimating apparatus 20, and side B is processed with groove and cooperates with the socket cap of a detector 40, so that detector 40 can be near hole 1b.
Wheel disc rotation center at collimation body 1 is processed with counterbore 1c in order to arrange camera head by the A side, and center, B side is provided with a 1e, and there is a threaded hole 1f at an axle 1e center in order to cooperate with the fixing screw 6 of driven gear 7.
Also be provided with at least one shooting hole 1d on collimation body 1 outer round surface, shooting hole 1d is a through hole, and is vertical with outer round surface, and extends through to center counterbore 1c, forms the shooting station.
For the utility model Wheel-type optical filtering collimator apparatus station can accurately be located, the utility model also comprises the detection and location assembly.On the B side flanges of collimation body 1, be processed with a plurality of slit 1g, corresponding one by one with each detection station or shooting station on being distributed in collimation body 1 outer round surface, be used for passing on signal to locate each station by this slit 1g printing opacity in the use to optoelectronic switch pick-up unit (known pick-up unit does not draw among the figure).
Shown in Fig. 1,4, once collimate lining 2, secondary collimation lining 3 and be all cylindrical sleeve, its external diameter, length cooperate with the step upper end of going into perforation 1a, perforation hole 1b on the collimation body 1, and internal diameter is according to tested its physical dimensions of element difference also difference.When assembling optical filtering collimator assembly, the secondary optical filter 9 of packing in the perforation hole 1b step position of collimation body 1 earlier is pressed into secondary collimation lining 3 again, going into the perforation 1a step position optical filter 8 of packing into a time, is pressed into and once collimates lining 2.Wherein, the use that complements one another of the color of the color of an optical filter 8, secondary optical filter 9 and the endoporus physical dimension that once collimates endoporus physical dimension, the secondary collimation lining 3 of lining 2, pointed, be to make up, so not only can be convenient to control but also can have improved measuring accuracy at certain or certain dvielement.The form of optical filter 8, secondary optical filter 9 is known in this technical field.Need to prove that when detecting certain sample or element, optical filter 8, secondary optical filter 9 not necessarily promptly on certain station, may not need to install optical filter.
As shown in Figure 1, the axle 1e that driven gear 7 is socketed in collimation body 1 in the driven unit goes up and screws in a threaded hole 1f at 1e centers and fix with screw 6; Driving gear 5 is fixed on the axle of motor 4; Motor 4 is fixed on the frame of instrument.Be provided with a small column 7a as the zero-bit reference column in driven gear 7 sides, be used for passing on signal with the location zero-bit to the optoelectronic switch pick-up unit.
During work, as Fig. 1, Fig. 4 signal, motor 4 rotations drive 1 rotation of collimation body by driving gear 5 and driven gear 6 engagements and make the rotation of optical filtering collimator assembly.Required station in the optical filtering collimator assembly forwards test position to, be required station, X-ray tube 30, detector 40, when sample is just in time formed the optical system for testing system of an Xray fluorescence spectrometer, the optoelectronic switch pick-up unit provides signal, motor 4 stops the rotation, and just can carry out analyzing and testing to specific sample or element-specific this moment.The utility model optical filtering collimator apparatus has been realized the conversion of optical filter, collimating apparatus by simple structure and control, satisfies the measurement demand of different samples or element.
Need to prove that the shooting station is to handle the working position that is provided with in order additionally sample to be taken a picture.When this device is in shooting during station, the camera that is installed in shooting hole 1d below just can be taken a picture and exports display terminal to the tested position of sample, so that the real time monitoring sample state.
Wheel disc type light-filtering collimating device of the present utility model not only simple in structure, compact, volume is little, and the driven unit part is few, simple in structure, namely is convenient to control. Can improve like this control accuracy, the measuring accuracy of spectrometer, have the advantage practical, that reliability is high.
Claims (10)
1. the Wheel-type optical filtering collimator apparatus of an Xray fluorescence spectrometer is characterized in that: comprise optical filtering collimator assembly and driven unit; Described optical filtering collimator assembly comprises collimation body, an a plurality of optical filter, a plurality of lining, a plurality of secondary optical filter and a plurality of secondary collimation lining of once collimating; Wherein:
The collimation body is a wheeling disk structure, at wheel disc outer round surface a plurality of stepped holes that are used for passing X ray that distributing, each hole by symmetry, axes intersect go into perforation and perforation hole two parts are formed, and go into perforation and perforation hole extends through respectively to the wheel disc two sides;
Described lining, the secondary collimation lining that once collimates is all cylindrical sleeve, and its external diameter, length cooperate with the upper end of stepped hole respectively, and the internal diameter size designs by tested element requirement;
A described optical filter is installed in the perforation step and once collimates position between the lining, and the secondary optical filter is installed in position between perforation hole step and the secondary collimation lining.
2. Wheel-type optical filtering collimator apparatus according to claim 1 is characterized in that: described to go into perforation vertical with the perforation hole two axial lines.
3. Wheel-type optical filtering collimator apparatus according to claim 1 and 2, it is characterized in that: described driven unit comprises motor, driving gear and driven gear, driven gear is fixed on the collimation body wheel disc central shaft, driven by motor driving gear, driving gear and driven gear engagement.
4. Wheel-type optical filtering collimator apparatus according to claim 1 and 2, it is characterized in that, described collimation body is processed with the counterbore perpendicular to this side at the center, a side into perforation of being provided with, also be provided with shooting hole, at least one place on the external circular surfaces of collimating apparatus, shooting hole and described center counterbore connect.
5. Wheel-type optical filtering collimator apparatus according to claim 4, it is characterized in that: also comprise the detection and location assembly, side flange at the collimation body is processed with a plurality of transmissive slits, slot number and position are corresponding with the stepped hole and the shooting hole of collimation body sheave surface, and the detection and location assembly also comprises the optoelectronic switch pick-up unit.
6. Wheel-type optical filtering collimator apparatus according to claim 3, it is characterized in that, described collimation body is processed with the counterbore perpendicular to this side at the center, a side into perforation of being provided with, also be provided with shooting hole, at least one place on the external circular surfaces of collimating apparatus, shooting hole and the perforation of described center counterbore.
7. Wheel-type optical filtering collimator apparatus according to claim 6, it is characterized in that: also comprise the detection and location assembly, side flange at the collimation body is processed with a plurality of transmissive slits, slot number and position are corresponding with the stepped hole and the shooting hole of collimation body sheave surface, and the detection and location assembly also comprises the optoelectronic switch pick-up unit.
8. according to claim 5 or 7 described Wheel-type optical filtering collimator apparatuses, it is characterized in that: described driven gear is provided with the zero-bit reference column.
9. Wheel-type optical filtering collimator apparatus according to claim 8 is characterized in that, described collimation body is processed with the groove that cooperates with the socket cap of Xray fluorescence spectrometer detector in a side that is provided with perforation hole.
10. Xray fluorescence spectrometer, comprise the X-ray pipe, filter disc dish, collimating apparatus, the detector of a plurality of optical filters is housed and fixes the framework and the shell of these parts, it is characterized in that wherein filter disc dish and collimator arrangement are the arbitrary described Wheel-type optical filtering collimator apparatus of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200469365U CN201622253U (en) | 2010-01-15 | 2010-01-15 | Wheel disc type light-filtering collimating device of X-ray fluorescence spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200469365U CN201622253U (en) | 2010-01-15 | 2010-01-15 | Wheel disc type light-filtering collimating device of X-ray fluorescence spectrometer |
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| Publication Number | Publication Date |
|---|---|
| CN201622253U true CN201622253U (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200469365U Expired - Lifetime CN201622253U (en) | 2010-01-15 | 2010-01-15 | Wheel disc type light-filtering collimating device of X-ray fluorescence spectrometer |
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| CN (1) | CN201622253U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597068A (en) * | 2015-01-08 | 2015-05-06 | 中国科学院高能物理研究所 | Collimation structure of space initiative-excitation laser X fluorescent spectrometer |
| 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 |
| CN109765291A (en) * | 2019-03-08 | 2019-05-17 | 陕西科技大学 | Paper total ash and component rapid measurement device and measurement method based on filter method |
| CN110123362A (en) * | 2018-02-08 | 2019-08-16 | 西门子医疗保健有限责任公司 | The filtering apparatus of collimator for radiation appliance |
| CN111879803A (en) * | 2020-07-03 | 2020-11-03 | 三峡大学 | Soil heavy metal content detection device and detection method |
-
2010
- 2010-01-15 CN CN2010200469365U patent/CN201622253U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597068A (en) * | 2015-01-08 | 2015-05-06 | 中国科学院高能物理研究所 | Collimation structure of space initiative-excitation laser X fluorescent spectrometer |
| 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 |
| CN110123362A (en) * | 2018-02-08 | 2019-08-16 | 西门子医疗保健有限责任公司 | The filtering apparatus of collimator for radiation appliance |
| CN110123362B (en) * | 2018-02-08 | 2023-07-14 | 西门子医疗保健有限责任公司 | Filter device for a collimator of a radiation device |
| CN109765291A (en) * | 2019-03-08 | 2019-05-17 | 陕西科技大学 | Paper total ash and component rapid measurement device and measurement method based on filter method |
| 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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Granted publication date: 20101103 |
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| CX01 | Expiry of patent term |