CN103852167B - Spectrometer flat field composes receiving trap entirely - Google Patents
Spectrometer flat field composes receiving trap entirely Download PDFInfo
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- CN103852167B CN103852167B CN201410040491.2A CN201410040491A CN103852167B CN 103852167 B CN103852167 B CN 103852167B CN 201410040491 A CN201410040491 A CN 201410040491A CN 103852167 B CN103852167 B CN 103852167B
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Abstract
The invention discloses a kind of spectrometer flat field and entirely compose receiving trap, comprise horizontal stand, vertical support frame, CCD fixed block, CCD plate, cylindrical mirror fixed block, cylindrical mirror, the relative position of cylindrical mirror and CCD module is determined by the characterisitic parameter of flat field grating, flat field grating used is characteristic spectral line light splitting on a focal plane, and the flat field of design is entirely composed receiving trap and ensured to receive all band data.Present invention achieves flat Jiao Chang and entirely compose collection spectral signal, reduce optical system volume, improve CCD direct-reading spectrometer performance, lowering apparatus cost.
Description
Technical field
The present invention relates to a kind of spectrum acquisition device, particularly relate to a kind of spectrometer flat field and entirely compose receiving trap.
Background technology
The optical system Rowland grating design of domestic existing CCD spectrometer, become image focus on Rowland circle but not on straight line, in the Rowland mounting using Rowland grating, raster center and photographic plate center are fixed on movable connecting rod two ends, the length of connecting rod is the radius-of-curvature of grating, and its two ends can be free to slide along mutually perpendicular guide rail.In connecting rod moving process, slit, grating and photographic plate are all the time on a Rowland circle, and the shortcoming of this device is: the spectrum that can only read different-waveband with mobile link.But flat field process is a ring important in CCD photometry work.Whether the quality of flat field, directly has influence on the precision of light-metering.The flat field i.e. field of a plane is exactly the embodiment to light source uniform luminance in the plane.In Rowland grating designed system, CCD detection means replaces straight line to detect with the circular arc of near linear, and its analysis precision is influenced, and in addition, Rowland grating CCD number used is a lot, causes optical detection cost high.Problem to be solved by this invention is exactly that a kind of flat field that may be used for spectrometer of design composes receiving trap entirely, improves precision on the one hand, reduces costs on the one hand.
Summary of the invention
The object of this invention is to provide and a kind ofly realize the spectrometer receiving trap that flat Jiao Chang composes spectroscopic acquisition entirely.
For achieving the above object, the invention provides a kind of spectrometer flat field and entirely composing receiving trap, comprise CCD support and at least one CCD module, described CCD module is fixed by screws on described CCD support.Described CCD support comprises horizontal stand, vertical support frame and register pin, and described horizontal stand and vertical support frame screw and register pin are fixed together.
Described vertical support frame and described horizontal stand are separately installed with at least one CCD module, and the CCD module be positioned on horizontal stand is perpendiculared to one another with the CCD module be positioned on described vertical support frame, and be interspersed successively.
Described CCD module comprises CCD fixed block, CCD plate, cylindrical mirror fixed block, cylindrical mirror, CCD element and data-interface; Described cylindrical mirror is horizontal by 45 ° of angles.
Horizontal light can be radiated on the CCD element that is fixed on described vertical support frame, impinges upon light on vertical support frame between two CCD modules by the cylindrical mirror reflection in the CCD module on described horizontal stand vertically to inject on the CCD element on horizontal stand.
Described CCD fixed block is fixed on described horizontal stand.Described cylindrical mirror is fixed on described cylindrical mirror fixed block, and described CCD plate, CCD element, cylindrical mirror fixed block are fixed on described CCD fixed block, and described CCD plate is square plate.
The CCD module be positioned on described horizontal stand comprises CCD fixed block, CCD plate, cylindrical mirror fixed block, cylindrical mirror, CCD element and data-interface; The CCD module be positioned on described vertical support frame comprises CCD plate, CCD element and data-interface, does not arrange cylindrical mirror fixed block, cylindrical mirror and CCD fixed block.
Described vertical support frame is multiedge cylinder, and its axle side is Z-shaped, comprises lower horizontal board, riser and upper leveling board, and described upper leveling board is parallel with lower horizontal board, and vertical with perpendicular version, and described lower horizontal board, riser and upper leveling board are formed in one.
Described horizontal stand is multiedge cylinder, and its axle side is L-type, comprises long slab and short slab, and described long slab and short slab are mutually vertical and be formed in one.The lower horizontal board of described vertical support frame is arranged on the long slab of described horizontal stand by some screws and two register pins, and the riser of described vertical support frame is vertical with the long slab of described horizontal stand.A groove is formed between the long slab of the riser trailing flank of described vertical support frame, the short slab leading flank of horizontal stand and horizontal stand.
Described CCD fixed block axle side is approximate in L-type, comprise installing plate and fixed head, described installing plate and fixed head perpendicular to one another and be connected, described installing plate is for connecting CCD element, CCD plate, cylindrical mirror fixed block, and described fixed head is for connecting CCD support.
The lower surface of described installing plate is fixed by the upper surface of screw and described CCD plate.The upper surface of described installing plate is fixed with CCD element, is also fixed with cylindrical mirror fixed block, and described cylindrical mirror fixed block is provided with cylindrical mirror.The lower surface of described CCD plate is provided with data-interface.The lower end of described cylindrical mirror fixed block is fixedly mounted on the upper surface of described installing plate, and described cylindrical mirror is positioned at the front upper side of described CCD element.
Its reception light face of described cylindrical mirror is plane, and reflective surface is concave surface, and the reception light face of described cylindrical mirror and the face at described CCD plate place are 45° angle.
CCD module on described horizontal stand is fixed between described groove by described fixed head screw, the lower surface of described installing plate is fixed by the upper surface of screw and described CCD plate, the upper surface of described installing plate is fixed with CCD element, the lower end of described cylindrical mirror fixed block is fixedly mounted on the upper surface of described installing plate, described cylindrical mirror fixed block is provided with cylindrical mirror, and described cylindrical mirror is positioned at the front upper side of described CCD element, the lower surface of described CCD plate is provided with data-interface;
CCD module on described vertical support frame, its CCD plate is fixed by the end face of the upper leveling board of screw and vertical support frame, and its CCD element is arranged on by screw on the upper surface of its CCD plate, and the lower surface of this CCD plate is provided with data-interface.
The CCD module be positioned on horizontal stand is perpendiculared to one another with the CCD module be positioned on vertical support frame, and be interspersed successively, being interspersed successively by the CCD module on horizontal stand and the CCD module be positioned on vertical support frame to prevent two parts CCD module from mutually interfering when receiving spectrum.
Spectrometer of the present invention composes receiving trap entirely for flat field grating, and analysis spectral line is diffracted on a focal plane, and the straight line so just avoided and the Approximation Problem of circular arc, improve analysis precision.Spectrometer flat field of the present invention is entirely composed receiving trap difference from prior art and is that spectrometer receiving trap of the present invention is used in flat field grating and unconventional Rowland grating, for direct-reading spectrometer has started a brand-new developing direction, CCD support Design in the present invention is light and handy, easy installation and removal, CCD support Design can ensure to receive whole spectral signal, accomplish real full analysis of spectrum, crucial ultraviolet band adopts direct manner receiving spectrum signal, avoid the absorption of catoptron to ultraviolet light, ensure that the sensitivity of instrument ultraviolet band element, be applicable to flat field grating, spectral line range of diffraction is little, use CCD number little, effectively reduce cost, and each pixel on guarantee CCD is in grating focus, effectively improve the analysis precision of instrument.
Below in conjunction with accompanying drawing, the full spectroscopic optics system of spectrometer flat field of the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the shaft side figure that spectrometer flat field of the present invention composes receiving trap entirely;
Fig. 2 is another shaft side figure (support register pin is visible) that spectrometer flat field of the present invention composes receiving trap entirely;
Fig. 3 is the shaft side figure that spectrometer flat field of the present invention composes CCD module in receiving trap entirely.
In figure: 1-CCD support, 2-CCD module, 3-horizontal stand, 4-vertical support frame, 5-register pin, 6-CCD fixed block, 7-CCD plate, 8-cylindrical mirror fixed block, 9-cylindrical mirror, 10-CCD element, 11-groove, 12-installing plate, 13-fixed head, 14-data-interface, the upper leveling board of 15-, 16-riser, 17-lower horizontal board, 18-short slab, 19-long slab.
Embodiment
As shown in Figure 1, spectrometer flat field of the present invention is entirely composed receiving trap and is comprised CCD support 1,9 CCD modules 2, CCD module 2 is screwed on CCD support 1, shown in composition graphs 2, CCD support 1 comprises horizontal stand 3, vertical support frame 4 and register pin 5, and vertical support frame is multiedge cylinder, and its cross section is Z-shaped, comprise integrated lower horizontal board 17, riser 16 and upper leveling board 15, and upper leveling board 15 is parallel with lower horizontal board 17 and vertical with riser 16.Horizontal stand 3 is multiedge cylinder, and its cross section is L-type, comprises integrated long slab 19 and short slab 18, and long slab 19 and short slab 18 perpendicular to one another.The lower horizontal board 17 of vertical support frame 4 is arranged on the long slab 19 of horizontal stand 3 by two register pins 5, the riser 16 of vertical support frame 4 is vertical with the long slab 19 of horizontal stand 3, forms a groove 11 between long slab 19 upper surface of riser 16 trailing flank of vertical support frame 4, short slab 18 leading flank of horizontal stand 3 and horizontal stand 3.
As shown in Figure 3, CCD module 2 comprises CCD fixed block 6, CCD plate 7, cylindrical mirror fixed block 8, cylindrical mirror 9, CCD element 10 and data-interface 14.CCD fixed block 6 is connected on CCD support 1, and CCD plate 7, cylindrical mirror fixed block 8 are fixed on CCD fixed block 6.Cylindrical mirror 9 is fixed on cylindrical mirror fixed block 8.
CCD fixed block 6 is approximately multiedge cylinder, is made up of installing plate 12, fixed head 13, installing plate 12 and fixed head 13 is perpendicular to one another is connected, and its cross section is approximate in L-type.
Installing plate 12 lower surface of the fixed block 6 of CCD module 2 is fixedly connected with the upper surface of CCD plate 7 by screw, the upper surface of installing plate 12 is provided with CCD element 10.Cylindrical mirror 9 is fixedly mounted on installing plate 12 by cylindrical mirror fixed block 8, and the lower end of cylindrical mirror fixed block 8 is fixedly mounted on the upper surface of installing plate, and cylindrical mirror 9 is positioned at the front upper side of CCD element 10.The lower surface of CCD plate is provided with data-interface 14.
In the present embodiment, horizontal stand 3 is provided with 4 CCD modules 2, the fixed head 13 of the CCD fixed block 6 of this CCD module 2 embeds in groove 11, and be fixed by screws on the short slab 18 of horizontal stand 3, its CCD plate 7 level, and the CCD plate 7 of these 4 CCD modules 2 is parallel to each other, arranges along axis.Vertical support frame 4 is provided with 5 CCD modules 2, this CCD module 2 comprises CCD plate, CCD element and data-interface, cylindrical mirror fixed block, cylindrical mirror and CCD fixed block are not set, its CCD plate 7 is fixed by the end face of leveling board 15 on screw and vertical support frame 4, and the CCD plate 7 of these 5 CCD modules 2 is parallel to each other, and its center point-blank.The CCD module be positioned on horizontal stand 3 is perpendiculared to one another with the CCD module be positioned on vertical support frame 4, and be interspersed successively, being interspersed successively by the CCD module on horizontal stand 3 and the CCD module be positioned on vertical support frame 4 to prevent two parts CCD module from mutually interfering when receiving spectrum.
When starting to gather spectral signal, be positioned at the direct receiving spectrum data of CCD element of the CCD module on vertical support frame 4, the CCD module 2 be positioned on horizontal stand 3 carrys out receiving spectrum data by the reflection of cylindrical mirror 9.Cylindrical mirror fixed block in four CCD modules of horizontal positioned is relevant with optical grating diffraction angle with the relative position of CCD fixed block, the width of cylindrical mirror can be passed through and calculates, and can ensure to reflex on the CCD element 10 that is arranged on horizontal stand 3 being installed to the spectral signal that vertical support frame cannot receive between two CCD plates.
In embodiments of the invention, 9 CCD module distributions interlaced with each other, multiple CCD module can be realized work simultaneously, jointly spectral signal can be gathered without the need to sliding, extend the analyzable element number of spectrometer, thus extend the kind of separate unit spectrometer analysis material, on the other hand, owing to have employed flat field grating and unconventional Rowland grating, CCD element can adopt straight line but not the circular arc of near linear carries out spectral detection, improve analysis precision, thus improve efficiency and the analytical performance of instrument entirety.
Above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that the common engineering technical personnel in this area make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (8)
1. spectrometer flat field composes a receiving trap entirely, and comprise CCD support (1), at least one CCD module (2), described CCD module (2) is fixedly mounted on described CCD support (1), it is characterized in that:
Described CCD support (1) comprises horizontal stand (3), vertical support frame (4) and register pin (5), and described vertical support frame (4) and described horizontal stand (3) are the polygon prism bodily form;
Described vertical support frame (4) and described horizontal stand (3) are separately installed with at least one CCD module (2), and the CCD module be positioned on horizontal stand (3) is perpendiculared to one another with the CCD module be positioned on described vertical support frame (4), and be interspersed successively;
CCD module (2) on described horizontal stand (3) comprises CCD fixed block (6), CCD plate (7), cylindrical mirror fixed block (8), cylindrical mirror (9), CCD element (10) and data-interface (14);
CCD module (2) on described vertical support frame (3) comprises CCD plate (7), CCD element (10) and data-interface (14);
Described cylindrical mirror (9) is horizontal by 45 ° of angles; Horizontal light can be radiated on the CCD element (10) that is fixed on described vertical support frame (4), and the light impinged upon between upper two the CCD modules (2) of vertical support frame (4) is reflected by the cylindrical mirror (9) in the CCD module on described horizontal stand (3) and injects on the CCD element (10) on horizontal stand (3).
2. spectrometer flat field according to claim 1 composes receiving trap entirely, it is characterized in that,
The CCD module (2) be positioned on described horizontal stand (3) comprises CCD fixed block (6), CCD plate (7), cylindrical mirror fixed block (8), cylindrical mirror (9), CCD element (10) and data-interface (14);
The CCD module (2) be positioned on described vertical support frame (4) comprises CCD plate (7), CCD element (10) and data-interface (14), does not arrange cylindrical mirror fixed block (8), cylindrical mirror (9) and CCD fixed block (6).
3. spectrometer flat field according to claim 2 composes receiving trap entirely, it is characterized in that,
The axle side of described vertical support frame (4) is Z-shaped, comprise lower horizontal board (17), riser (16) and upper leveling board (15), described upper leveling board (15) is parallel to each other with described lower horizontal board (17) and vertical with described riser (16), and three in one is shaping;
Described horizontal stand (3) axle side is L-type, comprises long slab (19) and short slab (18), described long slab (19) and described short slab (18) is perpendicular to one another and the two is one-body molded;
The lower horizontal board (17) of described vertical support frame (4) is fixedly mounted on described long slab (19) by two register pins (5), the riser (16) of described vertical support frame (4) is vertical with the long slab (19) of described horizontal stand (3), forms a groove (11) between the trailing flank of the riser (16) of described vertical support frame (4), the leading flank of the short slab (18) of horizontal stand (3) and long slab (19) upper surface of horizontal stand (3);
Described CCD fixed block (6) is multiedge cylinder, its axle side is approximate in L-type, comprise installing plate (12) and fixed head (13), described installing plate (12) and fixed head (13) perpendicular to one another and be connected, described installing plate (12) is for connecting CCD element (10), CCD plate (7) and cylindrical mirror fixed block (8), and described fixed head (13) is for connecting CCD support (1);
CCD module (2) on described horizontal stand (3) is fixed between described groove (11) by described fixed head (13); CCD module (2) on described vertical support frame (4), its CCD plate (7) is fixed by the end face of the upper leveling board of screw and vertical support frame.
4. spectrometer flat field according to claim 3 composes receiving trap entirely, it is characterized in that,
In CCD module (2) on horizontal stand (3), the lower surface of described installing plate (12) is fixed by the upper surface of screw and described CCD plate (7), the upper surface of described installing plate (12) is fixed with CCD element (10), the lower end of described cylindrical mirror fixed block (8) is fixedly mounted on the upper surface of described installing plate (12), described cylindrical mirror fixed block (8) is provided with cylindrical mirror (9), and described cylindrical mirror (9) is positioned at the front upper side of described CCD element (10), the lower surface of described CCD plate (7) is provided with data-interface (14),
In CCD module (2) on vertical support frame (4), described CCD element (10) is arranged on the upper surface of described CCD plate (7) by screw, and the lower surface of described CCD plate (7) is provided with data-interface (14).
5. spectrometer flat field according to claim 4 composes receiving trap entirely, it is characterized in that,
Described vertical support frame (4) is provided with 5 CCD modules (2), and the CCD plate (7) of these 5 CCD modules (2) is parallel to each other, arranges along axis; Described horizontal stand (3) is provided with 4 CCD modules (2), the CCD plate (7) of these 4 CCD modules (2) is parallel to each other, and its center point-blank, 4 CCD modules (2) that level is installed are intersected with vertically arranged 5 CCD modules (2) and are placed.
6. spectrometer flat field according to claim 5 composes receiving trap entirely, it is characterized in that: the back side of described cylindrical mirror (9) is plane, receiving light face is concave surface, the back side of described cylindrical mirror (9) is bonded in the top of cylindrical mirror fixed block (8), and the plane at described cylindrical mirror (9) back side and installing plate (13) place is 45° angle.
7. spectrometer flat field according to claim 6 composes receiving trap entirely, it is characterized in that: the cylindrical mirror fixed block (8) on four CCD modules (2) that described level is installed is relevant with optical grating diffraction angle with the relative position of CCD fixed block (6);
The cylindrical mirror (9) of the CCD module (2) that described horizontal stand is installed reflexes on the CCD element (10) that is arranged on horizontal stand (3) by being arranged on the spectral signal that cannot receive between upper two the CCD plates (7) of vertical support frame (4), the width of described cylindrical mirror (9) by actual demand through calculating.
8. spectrometer flat field according to claim 7 composes receiving trap entirely, it is characterized in that: described horizontal stand (3), vertical support frame (4), CCD fixed block (6) and cylindrical mirror fixed block (8) are all made with steel.
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| CN201410040491.2A CN103852167B (en) | 2014-01-27 | 2014-01-27 | Spectrometer flat field composes receiving trap entirely |
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| CN103852167B true CN103852167B (en) | 2016-03-30 |
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| CN104280347A (en) * | 2014-10-24 | 2015-01-14 | 合肥卓越分析仪器有限责任公司 | Data sampling device of photoelectric direct reading spectrograph |
| CN107179126A (en) * | 2017-07-20 | 2017-09-19 | 烟台东方分析仪器有限公司 | A kind of efficient CCD full spectrum lights spectrum collection structure |
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| US4995721A (en) * | 1990-03-05 | 1991-02-26 | Imo Industries, Inc. | Two-dimensional spectrometer |
| CN101059370A (en) * | 2007-05-11 | 2007-10-24 | 西安交通大学 | High flux, high detection sensitivity minitype polarization interference imaging spectrometer |
| CN200989824Y (en) * | 2006-12-11 | 2007-12-12 | 上海汉谱光电科技有限公司 | Portable colorimeter |
| CN201837457U (en) * | 2010-09-01 | 2011-05-18 | 北京普源精电科技有限公司 | Spectrophotometer with grating adjusting structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2568276B1 (en) * | 2011-09-06 | 2016-11-23 | Spectro Analytical Instruments GmbH | Plasma emission transfer and modification device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4995721A (en) * | 1990-03-05 | 1991-02-26 | Imo Industries, Inc. | Two-dimensional spectrometer |
| CN200989824Y (en) * | 2006-12-11 | 2007-12-12 | 上海汉谱光电科技有限公司 | Portable colorimeter |
| CN101059370A (en) * | 2007-05-11 | 2007-10-24 | 西安交通大学 | High flux, high detection sensitivity minitype polarization interference imaging spectrometer |
| CN201837457U (en) * | 2010-09-01 | 2011-05-18 | 北京普源精电科技有限公司 | Spectrophotometer with grating adjusting structure |
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