CN201935879U - Rotating disc type light-filtering collimating device adapted to vertical optical path X-ray fluorescence spectrometer - Google Patents
Rotating disc type light-filtering collimating device adapted to vertical optical path X-ray fluorescence spectrometer Download PDFInfo
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- CN201935879U CN201935879U CN2010206714002U CN201020671400U CN201935879U CN 201935879 U CN201935879 U CN 201935879U CN 2010206714002 U CN2010206714002 U CN 2010206714002U CN 201020671400 U CN201020671400 U CN 201020671400U CN 201935879 U CN201935879 U CN 201935879U
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Abstract
The utility model provides a rotating disc type light-filtering collimating device adapted to a vertical optical path X-ray fluorescence spectrometer, belonging to the analytical instrument field, which is constituted by a light-filtering part and a collimator part of the X-ray fluorescence spectrometer and comprises a collimator body, a plurality of primary optical filters, a plurality of secondary optical filters, a collimator ring and a fixing shaft; the collimator body is a rotating disc type structure having an excircle inclined plane; a plurality of incident holes are distributed on the horizontal disc surface of the rotating disc and are the vertical through holes for allowing the X-ray to pass; and the emergent holes as the number equal to the number of the incident holes are correspondingly distributed on the excircle inclined plane part of the rotating disc and are the through holes for allowing the X-fluorescence for sample excitation to pass; and the intersection angle of two axes of the incident hole and the emergent hole is an acute angle, preferably 45 DEG.
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 the novel Xray fluorescence spectrometer with vertical X fluorescence light path 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 shorten light path, can also reduce and disturb the influence of spectral line to Instrument measuring precision, the accuracy that improves the instrumental analysis result.
Classical theory according to the energy-dispersive X-ray fluorescence (EDXRF) analytical technology, the source class X ray is 45 ° to the incident angle of sample, the reflection angle that sample X fluorescent x ray arrives detector also is 45 °, that is to say, the angle of the X ray of source class incident and detector axis is 90 °, the applicant had before designed a kind of Wheel-type optical filtering collimator apparatus (referring to ZL201020046936.5) for this reason, combination has the optical filtering part and the collimating apparatus part of Xray fluorescence spectrometer, the wheel disc outer round surface is distributing organizes the stepped holes that are used for passing X ray more, each group hole is by symmetry, go into perforation and perforation hole two parts of intersect vertical axis are formed, and go into perforation and perforation hole extends through respectively to the wheel disc two sides.This Wheel-type optical filtering collimator apparatus has compact conformation, the advantage that volume is little.
A kind of novel Xray fluorescence spectrometer with vertical X fluorescence light path, the source class X ray is 90 ° (being vertical incidence) to the incident angle of sample, detector receives sample X fluorescent x ray in a certain angle, the Xray fluorescence spectrometer that this kind has vertical X fluorescence light path can be used for the on-plane surface sample is analyzed, and is the special-purpose Xray fluorescence spectrometer that adapts to the RoHS agreement.Because the light path of incident X-rays and outgoing sample X fluorescence and 90 ° of angles of classical Xray fluorescence spectrometer are inequality, installing of part and the collimating apparatus of filtering part also has bigger change, the Wheel-type optical filtering collimator apparatus of design before the applicant is because the X ray of source class incident can not be applicable in the Xray fluorescence spectrometer with vertical X fluorescence light path with the design of 90 ° of angles of detector axis.
The utility model content
At the problems referred to above, fundamental purpose of the present utility model is to provide a kind of rotating disc type optical filtering collimator apparatus that is applicable to the vertical optical path Xray fluorescence spectrometer, it has not only kept compact conformation, volume is little, simple in structure, multiple functional, practical reliable, realize control automatically easily, shorten the characteristics of ray optical path, also be specially adapted to the design of vertical optical path.
For achieving the above object, the utility model by the following technical solutions:
A kind of rotating disc type optical filtering collimator apparatus that is applicable to the vertical optical path Xray fluorescence spectrometer, combination has the optical filtering part and the collimating apparatus part of Xray fluorescence spectrometer, comprise collimation body, an a plurality of optical filter, a plurality of secondary optical filter, collimating apparatus ring and stationary shaft, described collimation body is the rotary-disk type structure that has the cylindrical inclined-plane, the horizontal card of rotating disk a plurality of perforations of going into that distributing, for being used for passing the vertical through hole of X ray, the distributing perforation hole of same quantity of the cylindrical chamfered portion correspondence of rotating disk is the through hole of the X fluorescence that is used for passing sample excitation.
Wherein, describedly go into perforation and perforation hole two axial lines to intersect angle be acute angle, can be 45.
Described collimating apparatus ring is a torus, is embedded in the ring groove of collimation body upside, is distributed with the different circular hole of a plurality of pore sizes above.
Describedly go into that perforation and outgoing are empty to be stepped hole, a described optical filter is installed in the position between perforation step and the collimating apparatus ring, and the secondary optical filter is installed in the position between perforation hole step and the collimating apparatus ring.
Described collimation body is processed with the ring-type counterbore perpendicular to this face outside bottom center's axle, also be provided with shooting hole, at least one place at collimation body upper surface, shooting hole and described counterbore connect, and the ring-type counterbore of below, shooting hole is installed a camera, and reflecting optics is equipped with at shooting hole deviation face place; Camera and reflecting optics are 45.
The centered cylinder that is connected with a motor is established in described collimation body bottom, two sensing chips is housed, the optoelectronic switch that installing cooperates with sensing chip on motor mounting plate on the face of cylinder.
Described collimation body bottom surface is provided with the zero-bit sensing chip.
Another purpose of the present utility model is to provide a kind of vertical optical path Xray fluorescence spectrometer.This vertical optical path Xray fluorescence spectrometer comprises sample panel, the X-ray pipe, optical filter, collimating apparatus, detector and framework and the shell of fixing these parts, wherein said optical filter and collimator arrangement are aforementioned rotating disc type optical filtering collimator apparatus, this rotating disc type optical filtering collimator apparatus is installed in the sample panel bottom of horizontal direction, described X-ray pipe is installed in optical filtering collimator apparatus bottom, and the X ray that sends is gone into perforation and samples vertical by the optical filtering collimator apparatus, described detector is installed in the sample panel bottom with a set angle, and the perforation hole center line of detector and optical filtering collimator apparatus is overlapping.
Adopt technique scheme, pass X ray and samples vertical that rotating disk is gone into perforation, directly excited sample produces X fluorescence, utilizes the perforation hole of set angle that X fluorescence is imported in the detector again, and the hole on the rotating disk is laid ingenious; Disk shaped collimation body combines a plurality of optical filters (once, secondary) and collimating apparatus ring, has compact conformation, the advantage that volume is little; In addition,, can realize the one-time-reach-place of optical filter and the combination of different apertures collimating aperture, 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, can use by exclusive cooperation vertical optical path Xray fluorescence spectrometer, can promote the globality of this vertical optical path Xray fluorescence spectrometer.
Description of drawings
Figure 1A is that the axle of the utility model optical filtering collimator apparatus is surveyed top view;
Figure 1B is that the axle of the utility model optical filtering collimator apparatus is surveyed backplan (dismounting motor);
Fig. 2 A is that the collimating apparatus axon is surveyed top view in the utility model;
Fig. 2 B is that the collimating apparatus axon is surveyed backplan 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
Cross-sectional schematic when Fig. 5 is the utility model shooting
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.
A kind of rotating disc type optical filtering collimator apparatus that is applicable to the vertical optical path 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 Figure 1A, Figure 1B (motor mount 4b is the perspective state), Fig. 4, shown in Figure 5, the utility model optical filtering collimator apparatus comprises collimation body 1, collimating apparatus ring 2, stationary shaft 3, an a plurality of optical filter 7, a plurality of secondary optical filter 8, reflecting optics 9, active thumb wheel assembly 5 and electric machine assembly 4, screw 6 etc.Wherein, collimation body 1, collimating apparatus ring 2, stationary shaft 3, an a plurality of optical filter 7, a plurality of secondary optical filter 8, reflecting optics 9 are formed the optical filtering collimator assembly; Initiatively thumb wheel assembly 5 and electric machine assembly 4 etc. are formed driven unit.
As Fig. 2 A, Fig. 2 B, shown in Figure 3, collimation body 1 is a turntable structure, in rotating disk upper recess surface some holes that are used for passing X ray perpendicular to card that distributing, be called into perforation 1a, the skew back disc perforation hole 1b of equal number that distributing outside rotating disk, going into perforation 1a extends through to rotating disk bottom surface A, perforation hole 1b extends through to rotating disk cylindrical inclined-plane B, going into perforation 1a and perforation hole 1b is one group, form one and detect station, the center line of going into perforation 1a intersects at an angle with the center line of perforation hole 1b and intersects at the lower surface of the test sample product S of institute.Hole 1a, 1b are stepped hole, are used at step place installation optical filter 7 and 8 (referring to Fig. 4).
Referring to Fig. 2 B and Fig. 4, collimation body 1 bottom surface is provided with annular recess 1g, and in order to be connected directly to X-ray tube 20, cylindrical inclined-plane B cooperates with the socket cap of detector 30, so that detector 30 is positioned as close to perforation hole 1b.
Referring to Fig. 2 B and Fig. 3, outside the rotating disk bottom surface rotation center of collimation body 1, be processed with ring-type counterbore 1e in order to arrange camera head 10, upper surface also is provided with at least one shooting hole 1c, shooting hole 1c is a through hole, vertical with outer round surface, and extend through to center counterbore 1e, the shooting station formed.
Referring to Figure 1A and Figure 1B, at collimation body 1 rotation center one stationary shaft 3 is housed, an end of stationary shaft 3 is provided with screw thread and is connected with the frame of instrument, and there is a threaded hole at other end center in order to cooperate with the fixing screw 6 of camera head 10.
For the utility model rotating disc type optical filtering collimator apparatus station can accurately be located, the utility model also comprises the detection and location assembly.Referring to Figure 1B, in the bottom surface of collimation body 1 zero-bit sensing chip 1h is housed, pass on signal with the location zero-bit by blocking the optoelectronic switch C infrared light that is installed on the motor mounting plate 4b in the use.
As Fig. 1,4, the ring of collimating apparatus shown in 52 is all and has the torus that many groups intersect hole (different aperture), its pore size difference is adjusted pore size in order to adapt to different tested elements, the groove 1d that the plane has a stepped hole on its profile and the collimation body 1 cooperates, distributing some groups at the upper surface of torus 2 and to be used for passing the hole of X ray, each group hole is divided into incident through hole 2a and outgoing through hole 2b two parts of intersection, incident through hole 2a is formed into perforation with a plurality of perforation 1a of going into that collimate body 1 and is used for by incident X-rays, and outgoing through hole 2b forms perforation with a plurality of perforation hole 1b that collimate body 1 and is used for by the outgoing X fluorescent x ray behind sample scattering.It is also different according to different its physical dimensions of tested element that each organizes the internal diameter in hole.When assembling optical filtering collimator assembly, earlier collimation body 1 go into the perforation 1a step position optical filter 7 of packing into a time, the secondary optical filter 8 of packing in perforation hole 1b step position is pressed into collimating apparatus ring 2 again.Wherein, the use that complements one another of optical filter 7, a secondary optical filter 8, pointed, be at certain or certain dvielement combination, so not only can be convenient to control but also can improve measuring accuracy.The form of optical filter 7, secondary optical filter 8 is known in this technical field.Need to prove that when detecting certain sample or element, optical filter 7, secondary optical filter 8 not necessarily promptly on certain station, may not need to install optical filter.
Shown in Figure 1B, active thumb wheel assembly 5 is fixed on the axle of motor 4 in the driven unit; Motor 4 is fixed on the frame of instrument.Two sensing chip 5a are housed on the center circle cylinder of active thumb wheel, corresponding with each detection station or shooting station on being distributed in collimation body 1, pass on signal to locate each station by blocking the optoelectronic switch D infrared light that is installed on the motor mounting plate 4b in the use.During work, illustrate that motor 4 rotations cooperate drive collimation body 1 to rotate by active thumb wheel assembly 5 with the deep-slotted chip breaker 1f that collimates body 1 bottom surface the optical filtering collimator assembly is rotated as Fig. 1,4.Required station in the optical filtering collimator assembly forwards test position to, be that required station, X-ray tube 20, detector 30, sample are when just in time forming the optical system for testing system of an Xray fluorescence spectrometer (showing light path referring to Fig. 4), 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.
During shooting, as Fig. 1,5 signals, the camera 10 that is installed in shooting hole 1c below just can be taken a picture to the tested position of sample and exports display terminal to by the reflected light of reflecting optics 9, so that the real time monitoring sample state.
Rotating disc type optical filtering collimator apparatus of the present utility model is not only simple in structure, compact, volume is little, and the driven unit part is few, simple in structure, promptly is convenient to control.Can improve control accuracy, the measuring accuracy of spectrometer like this, have the advantage practical, that reliability is high.
The vertical optical path Xray fluorescence spectrometer assembling synoptic diagram that is suitable for the utility model rotating disc type optical filtering collimator apparatus is referring to Fig. 4 and Fig. 5, wherein, the utility model rotating disc type optical filtering collimator apparatus is installed in the sample panel bottom of horizontal direction, X-ray tube 20 is installed among the annular recess 1g of optical filtering collimator apparatus bottom, and makes the X ray that sends go into perforation 1a and the direct vertical irradiation of incident through hole 2a to sample by the optical filtering collimator apparatus; Detector 30 is installed in the sample panel bottom with a set angle, the socket cap of detector 30 cooperates with the cylindrical inclined-plane B of optical filtering collimator apparatus, and make detector 30 overlapping as far as possible with the perforation hole 1b center line of optical filtering collimator apparatus, the setting angle of detector 30 can be selected the optional position of 0-90 ° (not containing end value), for making things convenient for putting of parts, generally select 45 ° to be advisable; Camera head 10 is installed in the shooting hole 1c below of optical filtering collimator apparatus, reflecting optics 9 is installed in shooting place, 1c inclined-plane, hole, be 45 ° of placements with camera head 10, can take a picture to the tested position of sample and export (referring to light path shown in Figure 5) by the reflected light of reflecting optics 9, so that the real time monitoring sample state.
Claims (10)
1. rotating disc type optical filtering collimator apparatus that is applicable to the vertical optical path Xray fluorescence spectrometer, combination has the optical filtering part and the collimating apparatus part of Xray fluorescence spectrometer, comprise the collimation body, a plurality of optical filters, a plurality of secondary optical filters, collimating apparatus ring and stationary shaft, it is characterized in that: described collimation body is the rotary-disk type structure that has the cylindrical inclined-plane, the horizontal card of rotating disk a plurality of perforations of going into that distributing, for being used for passing the vertical through hole of X ray, the distributing perforation hole of same quantity of the cylindrical chamfered portion correspondence of rotating disk is the through hole of the X fluorescence that is used for passing sample excitation.
2. according to the described rotating disc type optical filtering collimator apparatus that is applicable to the vertical optical path Xray fluorescence spectrometer of claim 1, it is characterized in that: describedly go into perforation and perforation hole two axial lines to intersect angle be acute angle.
3. according to the described rotating disc type optical filtering collimator apparatus that is applicable to the vertical optical path Xray fluorescence spectrometer of claim 2, it is characterized in that: describedly go into perforation and perforation hole two axial lines to intersect angle be 45 °.
4. according to claim 1 or the 2 or 3 described rotating disc type optical filtering collimator apparatuses that are applicable to the vertical optical path Xray fluorescence spectrometer, it is characterized in that: described collimating apparatus ring is a torus, be embedded in the ring groove of collimation body upside, be distributed with the different circular hole of a plurality of pore sizes above.
5. according to the described rotating disc type optical filtering collimator apparatus that is applicable to the vertical optical path Xray fluorescence spectrometer of claim 4, it is characterized in that: describedly go into that perforation and outgoing are empty to be stepped hole, a described optical filter is installed in the position between perforation step and the collimating apparatus ring, and the secondary optical filter is installed in the position between perforation hole step and the collimating apparatus ring.
6. according to claim 1 or the 2 or 3 described rotating disc type optical filtering collimator apparatuses that are applicable to the vertical optical path Xray fluorescence spectrometer, it is characterized in that: described collimation body is processed with the ring-type counterbore perpendicular to this face outside bottom center's axle, also be provided with shooting hole, at least one place at collimation body upper surface, shooting hole and described counterbore connect, the ring-type counterbore of below, shooting hole is installed a camera, and reflecting optics is equipped with at shooting hole deviation face place.
7. according to the described rotating disc type optical filtering collimator apparatus that is applicable to the vertical optical path Xray fluorescence spectrometer of claim 6, it is characterized in that camera and reflecting optics are 45.
8. according to claim 1 or the 2 or 3 described rotating disc type optical filtering collimator apparatuses that are applicable to the vertical optical path Xray fluorescence spectrometer, it is characterized in that: the centered cylinder that is connected with a motor is established in described collimation body bottom, two sensing chips are housed, the optoelectronic switch that installing cooperates with sensing chip on motor mounting plate on the face of cylinder.
9. the described according to Claim 8 rotating disc type optical filtering collimator apparatus that is applicable to the vertical optical path Xray fluorescence spectrometer is characterized in that: described collimation body bottom surface is provided with the zero-bit sensing chip.
10. vertical optical path Xray fluorescence spectrometer, comprise sample panel, the X-ray pipe, optical filter, collimating apparatus, detector and framework and the shell of fixing these parts, it is characterized in that, described optical filter and collimator arrangement are the arbitrary described rotating disc type optical filtering collimator apparatus of claim 1 to 9, this rotating disc type optical filtering collimator apparatus is installed in the sample panel bottom of horizontal direction, described X-ray pipe is installed in optical filtering collimator apparatus bottom, and the X ray that sends is gone into perforation and samples vertical by the optical filtering collimator apparatus, described detector is installed in the sample panel bottom with a set angle, and the perforation hole center line of detector and optical filtering collimator apparatus is overlapping.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206714002U CN201935879U (en) | 2010-12-21 | 2010-12-21 | Rotating disc type light-filtering collimating device adapted to vertical optical path X-ray fluorescence spectrometer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206714002U CN201935879U (en) | 2010-12-21 | 2010-12-21 | Rotating disc type light-filtering collimating device adapted to vertical optical path X-ray fluorescence spectrometer |
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| CN201935879U true CN201935879U (en) | 2011-08-17 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293174A (en) * | 2012-03-01 | 2013-09-11 | 纳优科技（北京）有限公司 | X ray fluorescence spectrophotometer for multi-detectors and multi-light pipes and X ray fluorescence spectrum detection method for large-volume sample |
| CN103896172A (en) * | 2014-04-16 | 2014-07-02 | 常州市榆轩环境设备有限公司 | Traction device for cleaning machine for radiator fins of indirect air cooling tower in power plant |
| CN105559812A (en) * | 2016-02-29 | 2016-05-11 | 深圳圣诺医疗设备股份有限公司 | Mammary gland X ray system and collimator thereof |
| CN107367522A (en) * | 2017-09-11 | 2017-11-21 | 江苏天瑞仪器股份有限公司 | A kind of rotational structure for the more collimaters of X fluorescence spectrometer |
| CN107389714A (en) * | 2017-06-29 | 2017-11-24 | 苏州浪声科学仪器有限公司 | A kind of X ray collimates block |
| 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 |
| CN109991653A (en) * | 2019-04-15 | 2019-07-09 | 中国原子能科学研究院 | A kind of rotating disc type X-ray radiation filter device of band coding |
| CN113109285A (en) * | 2021-04-09 | 2021-07-13 | 淄博盖米测控系统有限公司 | Moisture monitoring system for fine dried noodle production line |
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2010
- 2010-12-21 CN CN2010206714002U patent/CN201935879U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293174A (en) * | 2012-03-01 | 2013-09-11 | 纳优科技（北京）有限公司 | X ray fluorescence spectrophotometer for multi-detectors and multi-light pipes and X ray fluorescence spectrum detection method for large-volume sample |
| CN103896172A (en) * | 2014-04-16 | 2014-07-02 | 常州市榆轩环境设备有限公司 | Traction device for cleaning machine for radiator fins of indirect air cooling tower in power plant |
| CN105559812A (en) * | 2016-02-29 | 2016-05-11 | 深圳圣诺医疗设备股份有限公司 | Mammary gland X ray system and collimator thereof |
| CN107389714A (en) * | 2017-06-29 | 2017-11-24 | 苏州浪声科学仪器有限公司 | A kind of X ray collimates block |
| CN107367522A (en) * | 2017-09-11 | 2017-11-21 | 江苏天瑞仪器股份有限公司 | A kind of rotational structure for the more collimaters of X fluorescence spectrometer |
| CN107367522B (en) * | 2017-09-11 | 2020-05-15 | 江苏天瑞仪器股份有限公司 | Rotating structure for multiple collimators of X-ray 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 |
| CN109991653A (en) * | 2019-04-15 | 2019-07-09 | 中国原子能科学研究院 | A kind of rotating disc type X-ray radiation filter device of band coding |
| CN113109285A (en) * | 2021-04-09 | 2021-07-13 | 淄博盖米测控系统有限公司 | Moisture monitoring system for fine dried noodle production line |
| CN113109285B (en) * | 2021-04-09 | 2022-07-15 | 淄博盖米测控系统有限公司 | Moisture monitoring system for noodle production line |
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Granted publication date: 20110817 |