CN201387734Y - Optical filter device of X-ray fluorescence spectrometer - Google Patents
Optical filter device of X-ray fluorescence spectrometer Download PDFInfo
- Publication number
- CN201387734Y CN201387734Y CN200920106683U CN200920106683U CN201387734Y CN 201387734 Y CN201387734 Y CN 201387734Y CN 200920106683 U CN200920106683 U CN 200920106683U CN 200920106683 U CN200920106683 U CN 200920106683U CN 201387734 Y CN201387734 Y CN 201387734Y
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- China
- Prior art keywords
- filter device
- filter disc
- optical filter
- disc dish
- fluorescence spectrometer
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- Analysing Materials By The Use Of Radiation (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The utility model relates to an optical filter device of an X-ray fluorescence spectrometer, which is characterized by comprising a filter plate, a small gear for transmitting power and a stepper motor for supplying rotation, wherein the filter plate is in a V type with an included angle ranging from 0 degree to 180 degrees, a plurality of through holes are distributed uniformly on a V-type conical surface of the filter plate, the upper end edge of the filter plate is provided with meshing teeth, the small gear is installed on the stepper motor and meshed with the meshing teeth which are arranged on the upper end edge of the filter plate.
Description
Technical field
The utility model relates to Xray fluorescence spectrometer, is meant a kind of optical filter device of Xray fluorescence spectrometer especially.
Background technology
In Xray fluorescence spectrometer, optical filter is one of parts of instrument indispensability, and it mainly acts on and is to filter the X ray that influences measuring accuracy in the sample analysis process.At different samples and analytical element, rationally select different optical filters for use, can increase substantially the measuring accuracy of instrument.
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.
Summary of the invention
At the problems referred to above, fundamental purpose of the present utility model is to provide a kind of V-type optical filter device of Xray fluorescence spectrometer, its compact conformation, and volume is little, and is simple in structure, practical, reliable, realizes control automatically easily.
For achieving the above object, the optical filter device of a kind of Xray fluorescence spectrometer provided by the utility model, it is characterized in that comprising: the pinion wheel of filter disc dish, transfer motion power and the stepper motor of rotation is provided, described filter disc dish is V-shaped, its angular range is 0～180 °, be evenly distributed with a plurality of through holes on the V-type conical surface of described filter disc dish, the edge, upper end is laid with engaging tooth, described pinion wheel is installed on the described stepper motor, and the engaging tooth at described pinion wheel and edge, described filter disc dish upper end is meshing with each other.
In the above-mentioned the technical solution of the utility model, described through hole has the aperture that varies in size, and its large pore through hole is the optical filtering film perforation that is used to install different optical filters, and the small-bore through hole is the light hole of symmetry.
In the above-mentioned the technical solution of the utility model, the axis of described optical filtering film perforation is concentric with the axis of the collimating apparatus ray channel of X fluorescence spectrophotometer.
In the above-mentioned the technical solution of the utility model, the axis of described light hole is concentric with the detector window of X fluorescence spectrophotometer.
In the above-mentioned the technical solution of the utility model, the v-angle of described filter disc dish is 90 °.
In the above-mentioned the technical solution of the utility model, a flanging is arranged at the bottom of described filter disc dish, is provided with one above and is used for the rectangular channel that the stepper motor zero-bit detects.
Adopt technique scheme, the utility model adopts the filter disc dish of V-structure, and is not only simple in structure, and makes the filtering apparatus compact conformation, volume is little, by the gear meshing transmission, realize the rotation of filter disc dish, have practicality, advantage that reliability is high, and the utility model adopts stepper motor as propulsion system, can improve the rotation precision of filter disc dish, and be convenient to adopt the automatic conversion of computer realization optical filter, bigger application prospect is arranged.
Description of drawings
Fig. 1 is a shaft side figure of the present utility model
Fig. 2 is the shaft side figure of the utility model V-type filter disc dish
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 utility model is a kind of optical filter device of the X of being applicable to fluorescence spectrophotometer, and as shown in Figure 1, it mainly comprises the pinion wheel 2 of filter disc dish 1, transfer motion power and the propulsion system stepper motor 3 of rotation is provided.As shown in Figure 2, filter disc dish 1 is V-shaped, and the angle of V-arrangement is 90 ° in the present embodiment, also can require to select 0～180 ° of any angle in (90 ° commonly used) scope according to light path design.Filter disc dish 1 bottom is provided with a flanging, is provided with a rectangular channel 14 above, and the zero-bit that is used for stepper motor 3 detects.Be evenly distributed with a plurality of through holes on the V-type conical surface of filter disc dish 1, wherein a part is for being used for installing the optical filtering film perforation 11 (Fig. 2 macropore) of different optical filters, and another part is the light hole that is unkitted optical filter 12 of symmetry.The axis of optical filtering film perforation 11 is concentric with the axis of the collimating apparatus ray channel of X fluorescence spectrophotometer, and different optical filtering film perforations 11 are docked with the collimating apparatus ray channel, and the fluorescent X-ray of sample enters detector by the light hole that is unkitted optical filter 12 of symmetry.Edge, V-type filter disc dish 1 upper end is laid with engaging tooth 13, it is meshed with the teeth 21 of pinion wheel 2, when stepper motor 3 drives pinion wheel mounted thereto 2 rotations, the teeth 21 of pinion wheel 2 cooperate drive filter disc dish 1 to rotate with engaging tooth 13, thereby the different optical filters in the optical filtering film perforation 11 that is installed in filter disc dish 1 can freely be switched.
Adopt said structure, the utility model adopts the filter disc dish of V-structure, not only simplifies the structure, and makes The filtering apparatus compact conformation, volume is little, by the engaged transmission of gear, realizes the rotation of filter disc dish, has reality With, advantage that reliability is high, and the utility model adopts stepper motor as power set, can improve filter disc The rotation precision of dish, and be convenient to adopt the automatic conversion of computer realization optical filter.
Claims (6)
1, a kind of optical filter device of Xray fluorescence spectrometer, it is characterized in that comprising: the pinion wheel of filter disc dish, transfer motion power and the stepper motor of rotation is provided, described filter disc dish is V-shaped, its angular range is 0～180 °, be evenly distributed with a plurality of through holes on the V-type conical surface of described filter disc dish, the edge, upper end is laid with engaging tooth, and described pinion wheel is installed on the described stepper motor, and the engaging tooth at described pinion wheel and edge, described filter disc dish upper end is meshing with each other.
2, the optical filter device of Xray fluorescence spectrometer as claimed in claim 1 is characterized in that: described through hole has the aperture that varies in size, and its large pore through hole is the optical filtering film perforation that is used to install different optical filters, and the small-bore through hole is the light hole of symmetry.
3, the optical filter device of Xray fluorescence spectrometer as claimed in claim 2 is characterized in that: the axis of described optical filtering film perforation is concentric with the axis of the collimating apparatus ray channel of X fluorescence spectrophotometer.
4, the optical filter device of Xray fluorescence spectrometer as claimed in claim 2 is characterized in that: the axis of described light hole is concentric with the detector window of X fluorescence spectrophotometer.
5, as the optical filter device of claim 1 or 2 or 3 or 4 described Xray fluorescence spectrometers, it is characterized in that: the v-angle of described filter disc dish is 90 °.
6, the optical filter device of Xray fluorescence spectrometer as claimed in claim 1 is characterized in that: a flanging is arranged at the bottom of described filter disc dish, is provided with one above and is used for the rectangular channel that the stepper motor zero-bit detects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106683U CN201387734Y (en) | 2009-04-02 | 2009-04-02 | Optical filter device of X-ray fluorescence spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106683U CN201387734Y (en) | 2009-04-02 | 2009-04-02 | Optical filter device of X-ray fluorescence spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201387734Y true CN201387734Y (en) | 2010-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920106683U Expired - Lifetime CN201387734Y (en) | 2009-04-02 | 2009-04-02 | Optical filter device of X-ray fluorescence spectrometer |
Country Status (1)
| Country | Link |
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| CN (1) | CN201387734Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313956A (en) * | 2011-08-26 | 2012-01-11 | 深圳市优威视讯科技有限公司 | Optical device automatic switching device and photography equipment |
| 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 |
| 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 |
| 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 |
-
2009
- 2009-04-02 CN CN200920106683U patent/CN201387734Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313956A (en) * | 2011-08-26 | 2012-01-11 | 深圳市优威视讯科技有限公司 | Optical device automatic switching device and photography equipment |
| 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 |
| 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 |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100120 |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Shenzhen Unique Metrical Technology Co., Ltd. Document name: Notification of Expiration of Patent Right Duration |