CN107179126A - A kind of efficient CCD full spectrum lights spectrum collection structure - Google Patents
A kind of efficient CCD full spectrum lights spectrum collection structure Download PDFInfo
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- CN107179126A CN107179126A CN201710595728.7A CN201710595728A CN107179126A CN 107179126 A CN107179126 A CN 107179126A CN 201710595728 A CN201710595728 A CN 201710595728A CN 107179126 A CN107179126 A CN 107179126A
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- ccd
- voltage signal
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- collection structure
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- 238000001228 spectrum Methods 0.000 title claims abstract description 52
- 238000006243 chemical reaction Methods 0.000 claims abstract description 42
- 230000003595 spectral effect Effects 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 230000003321 amplification Effects 0.000 claims abstract description 10
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010183 spectrum analysis Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004611 spectroscopical analysis Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0202—Mechanical elements; Supports for optical elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/0208—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using focussing or collimating elements, e.g. lenses or mirrors; performing aberration correction
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The present invention is applied to field of spectral analysis technology, and there is provided an efficient CCD full spectrum lights spectrum collection structure, including beam condensing unit, CCD, data conversion plate and data collecting card；Beam condensing unit, for incident spectral signal to be carried out into reflection focusing；CCD, for the spectral signal equal proportion reflected after focusing on to be converted into voltage signal；Data conversion plate, is handled for voltage signal to be carried out into reverse, amplification, filtering, AD conversion, transmission and storage；Data collecting card, for the voltage signal after processing to be acquired, and is input to host computer by the voltage signal collected.Present invention could apply to all kinds of spectrometers, not only realize that certain spectral region composes collection entirely, effectively the efficiency and speed of lifting spectra collection, most important effect is played to lifting spectrometer performance.
Description
Technical field
The present invention relates to field of spectral analysis technology, more particularly to a kind of efficient CCD full spectrum lights spectrum collection structure.
Background technology
At present, with the development of spectral analysis technique, spectrographic detection technology is traditional based on light also towards multi-direction development
The spectrographic detection technology of electric multiplier tube, because volume is big, quantity is more, cost is high, passage configuration is dumb, is unfavorable for spectrometer small
Type, inexpensive direction are developed.
The content of the invention
For above-mentioned defect, by optimizing ccd detector front end light path and data conversion and Acquisition Circuit, the present invention is carried
A kind of efficient CCD full spectrum lights spectrum collection structure is supplied, it can apply to all kinds of spectrometers, not only realize certain spectral region
Full spectrum collection, the effectively efficiency and speed of lifting spectra collection, most important effect is played to lifting spectrometer performance.
To achieve these goals, the present invention provides a kind of efficient CCD full spectrum lights spectrum collection structure, including optically focused dress
Put, CCD, data conversion plate and data collecting card；
Beam condensing unit, for incident spectral signal to be carried out into reflection focusing；
CCD, for the spectral signal equal proportion reflected after focusing on to be converted into voltage signal；
Data conversion plate, is handled for voltage signal to be carried out into reverse, amplification, filtering, AD conversion, transmission and storage；
Data collecting card, for the voltage signal after processing to be acquired, and the voltage signal collected is input to
Host computer.
According to the efficient CCD full spectrum lights of present invention spectrum collection structure, the beam condensing unit is cylindrical mirror, and it is located at
CCD tops, 45 ° of end slope are fixed in fixed seat with ultraviolet glue；Focal distance is kept between the beam condensing unit and CCD.
According to the efficient CCD full spectrum lights of present invention spectrum collection structure, the CCD is fixed by spacing pallet, the limit
Position tray bottom is sequentially connected downwards sealing plate and fulcrum bearing, and the fulcrum bearing is screwed on data conversion plate.
According to the efficient CCD full spectrum lights of present invention spectrum collection structure, the data conversion plate is connected by contact pin with CCD
And using monolithic ARM drivings CCD；The data conversion plate carries out the reverse of voltage signal, amplification, at filtering using monolithic amplifier
Reason, the AD conversion of voltage signal is carried out using the ADC on ARM pieces, data collecting card is transferred data to using 422 serial ports.
According to the efficient CCD full spectrum lights of present invention spectrum collection structure, the PCI that the data collecting card is positioned in an up machine is inserted
In groove, and it is connected by DB62 interfaces with data conversion plate described in 8 tunnels, data conversion plate described in per road is independent control.
According to the efficient CCD full spectrum lights of present invention spectrum collection structure, the fixed seat is secured by bolts in spacing support
On disk.
According to the efficient CCD full spectrum lights of present invention spectrum collection structure, the sealing plate is the thick rubber slabs of 2mm；It is described
Fulcrum bearing makes for aluminium sheet one-shot forming.
Incident spectral signal is carried out reflection focusing using cylindrical mirror, gathered by the present invention by setting beam condensing unit
Defocused spectral signal is impinged perpendicularly on CCD pixels；Spectral signal equal proportion is changed after being focused on using the CCD set thereafter
For voltage signal；Recycle data conversion plate by after conversion voltage signal carry out reversely, amplification, filtering, AD conversion, transmission and
Storage is handled；Voltage signal after processing is input in host computer after being gathered through data collecting card, and host computer is carried out at data
Reason analysis, data collecting card is connected with 8 circuit-switched data change-over panels altogether, by simultaneously or time-sharing work, realizing different-waveband spectrum number
According to conversion and collection, not only ensure that larger spectra collection scope, also improve the speed of spectroscopic acquisition.
Brief description of the drawings
Fig. 1 is the principle process schematic diagram of the present invention；
Fig. 2 is beam condensing unit, CCD and data change-over panel exploded view；
Fig. 3 is data conversion plate circuit theory diagrams；
In figure, 1- beam condensing units, 2-CCD, 3- data conversion plates, 4- data collecting cards, 5- fixed seats, 6- cylindrical surface for reflection
Mirror, the spacing pallets of 7-, 8- sealing plates, 9- fulcrum bearings.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1 and Fig. 2, the invention provides a kind of efficient CCD full spectrum lights spectrum collection structure.The CCD full spectrum lights are composed
Gathering structure includes beam condensing unit 1, CCD2, data conversion plate 3 and data collecting card 4.
Beam condensing unit 1, for incident spectral signal to be carried out into reflection focusing, beam condensing unit 1 is cylindrical mirror herein
6, it is arranged on CCD2 top and 45 ° of end slope is fixed in fixed seat 5 with ultraviolet glue, and parallel incident spectrum is through post
The reflection of face speculum 6 is impinged perpendicularly on CCD2 after focusing on, and by making beam condensing unit 1 and CCD2 keep focal distance, makes focusing
Spectral signal focus afterwards is just irradiated to above CCD2 pixel array, it is ensured that CCD2 gathers the efficiency of spectrum.
CCD2, for the spectral signal equal proportion reflected after focusing on to be converted into voltage signal；CCD2 passes through spacing pallet 7
It is fixed, sealing plate 8 and fulcrum bearing 9 are sequentially connected in the bottom of spacing pallet 7, wherein fulcrum bearing 9 is screwed in data
On change-over panel 3；It should also be noted that, sealing plate 8 is the thick rubber slabs of 2mm, it is mainly used to be isolated optical system
Sealing；Fulcrum bearing 9 is that aluminium sheet one-shot forming makes, and is mainly used to supporting data conversion plate 3, it is ensured that data conversion plate 3 with it is spacing
The position of pallet 7 is fixed.
Data conversion plate 3, is handled for voltage signal to be carried out into reverse, amplification, filtering, AD conversion, transmission and storage, its
It is connected by contact pin with CCD2 and uses monolithic ARM to drive CCD2；Specifically, data conversion plate 3 carries out electricity using monolithic amplifier
The reverse of signal, amplification, filtering process are pressed, the AD conversion of voltage signal is carried out using the ADC on ARM pieces, will using 422 serial ports
Data transfer is to data collecting card 4.
Data collecting card 4, for the voltage signal after processing to be acquired, and the voltage signal collected is input to
Host computer；Specifically, data collecting card 4 is arranged in the PCI slot of host computer, and changed by DB62 interfaces and 8 circuit-switched datas
Plate 3 is connected, and multichannel data change-over panel 3 is by the parallel communications of data collecting card 4, with spectra collection efficiency high, fireballing
Feature, applied to spectrometer, can greatly promote the analytical performance of spectrometer, and be independent control per circuit-switched data change-over panel 3, this
Each circuit-switched data change-over panel 3 of sample can both work simultaneously, can also time-sharing work, so as to realize the conversion of different-waveband spectroscopic data
And collection, larger spectra collection scope is not only ensure that, the speed of spectroscopic acquisition is also improved.
It should also be noted that, spacing pallet 7 is secured by bolts in for fixing the fixed seat 5 of cylindrical mirror 6,
Fixations of the CDD2 with respect to the position of cylindrical mirror 6 is ensure that, so as to ensure that incident light is focused on above CCD2 pixels, spectrum is improved
Incident efficiency.
Referring to Fig. 3, data conversion plate 3 realizes that CCD2 (U1) spectral signal is removed, instead using monolithic ARM (U3) control chip
To, amplification, filtering, conversion, transmission, mainly including CCD2 (U1) peripheral circuit, reverse filtering and amplifying circuit, 422 telecommunication circuits
With ARM (U3) unit, CCD2 (U2) has unique electronic shutter function, controls output driving pulse to believe by the PWM of ARM unit
Number (including master clock, transfer gate, integration remove gate), control CCD2 be operated in electronic shutter pattern, realize the time of integration
10~10000000 μ S can flexibly be set, using monolithic amplifier (U2), reversely input, carry out signals reverse, and feedback resistance is used
It is amplified, meanwhile, according to signal read-out speed, at feedback resistance two ends and there is electric capacity C1 to be filtered, in order to avoid power supply
The influence to signal is fluctuated, power supply introduces amplifier forward end by electric resistance partial pressure, it is to avoid influence of the voltage pulsation to signal output.
Realize that 232 and 422 communication patterns are changed using serial communication chip (U4), improve communication anti-interference capability.Using on ARM pieces
ADC is AD converted, and conversion accuracy is 12bit, and switching rate highest can reach 1MSa/S.
In summary, the present invention is carried out incident spectral signal using cylindrical mirror anti-by setting beam condensing unit
Focusing is penetrated, the spectral signal after focusing is impinged perpendicularly on CCD pixels；Spectral signal after being focused on using the CCD set thereafter
Equal proportion is converted to voltage signal；Recycle data conversion plate that the voltage signal after conversion is carried out into reverse, amplification, filtering, AD
Conversion and transmission process；Voltage signal after processing is input in host computer after being gathered through data collecting card, and host computer is carried out
Data Management Analysis, data collecting card is connected with 8 circuit-switched data change-over panels altogether, by simultaneously or time-sharing work, realize different-waveband
The conversion and collection of spectroscopic data, not only ensure that larger spectra collection scope, also improve the speed of spectroscopic acquisition.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Various corresponding changes and deformation, but these corresponding changes and change ought can be made according to the present invention by knowing those skilled in the art
Shape should all belong to the protection domain of appended claims of the invention.
Claims (7)
1. a kind of efficient CCD full spectrum lights spectrum collection structure, it is characterised in that including beam condensing unit, CCD, data conversion plate and
Data collecting card；
Beam condensing unit, for incident spectral signal to be carried out into reflection focusing；
CCD, for the spectral signal equal proportion reflected after focusing on to be converted into voltage signal；
Data conversion plate, is handled for voltage signal to be carried out into reverse, amplification, filtering, AD conversion, transmission and storage；
Data collecting card, for the voltage signal after processing to be acquired, and the voltage signal collected is input to upper
Machine.
2. efficient CCD full spectrum lights spectrum collection structure according to claim 1, it is characterised in that the beam condensing unit is
Cylindrical mirror, it is above CCD, 45 ° of end slope is fixed in fixed seat with ultraviolet glue；The beam condensing unit and CCD
Between keep focal distance.
3. efficient CCD full spectrum lights spectrum collection structure according to claim 1, it is characterised in that the CCD passes through spacing
Pallet is fixed, and the spacing tray bottom is sequentially connected downwards sealing plate and fulcrum bearing, the fulcrum bearing be screwed in
On data conversion plate.
4. efficient CCD full spectrum lights spectrum collection structure according to claim 1, it is characterised in that the data conversion plate
It is connected by contact pin with CCD and uses monolithic ARM to drive CCD；The data conversion plate carries out voltage signal using monolithic amplifier
It is reverse, amplification, filtering process, using on ARM pieces ADC carry out voltage signal AD conversion, data are passed using 422 serial ports
It is defeated to arrive data collecting card.
5. efficient CCD full spectrum lights spectrum collection structure according to claim 1, it is characterised in that the data collecting card
It is positioned in an up in the PCI slot of machine, and is connected by DB62 interfaces with data conversion plate described in 8 tunnels, data turns described in per road
Plate is changed for independent control.
6. efficient CCD full spectrum lights spectrum collection structure according to claim 2, it is characterised in that the fixed seat passes through
Bolt is fixed on spacing pallet.
7. efficient CCD full spectrum lights spectrum collection structure according to claim 3, it is characterised in that the sealing plate is 2mm
Thick rubber slab；The fulcrum bearing makes for aluminium sheet one-shot forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710595728.7A CN107179126A (en) | 2017-07-20 | 2017-07-20 | A kind of efficient CCD full spectrum lights spectrum collection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710595728.7A CN107179126A (en) | 2017-07-20 | 2017-07-20 | A kind of efficient CCD full spectrum lights spectrum collection structure |
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| Publication Number | Publication Date |
|---|---|
| CN107179126A true CN107179126A (en) | 2017-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710595728.7A Pending CN107179126A (en) | 2017-07-20 | 2017-07-20 | A kind of efficient CCD full spectrum lights spectrum collection structure |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852167A (en) * | 2014-01-27 | 2014-06-11 | 烟台东方分析仪器有限公司 | Spectrograph flat-field full-spectrum receiving device |
| CN205748637U (en) * | 2016-04-29 | 2016-11-30 | 徐州曼特电子有限公司 | Spectrum data gathering system |
-
2017
- 2017-07-20 CN CN201710595728.7A patent/CN107179126A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852167A (en) * | 2014-01-27 | 2014-06-11 | 烟台东方分析仪器有限公司 | Spectrograph flat-field full-spectrum receiving device |
| CN205748637U (en) * | 2016-04-29 | 2016-11-30 | 徐州曼特电子有限公司 | Spectrum data gathering system |
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Application publication date: 20170919 |