CN202494518U - High accuracy spectrometer calibration device - Google Patents
High accuracy spectrometer calibration device Download PDFInfo
- Publication number
- CN202494518U CN202494518U CN2011205029629U CN201120502962U CN202494518U CN 202494518 U CN202494518 U CN 202494518U CN 2011205029629 U CN2011205029629 U CN 2011205029629U CN 201120502962 U CN201120502962 U CN 201120502962U CN 202494518 U CN202494518 U CN 202494518U
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- spectrometer
- ccd detector
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- high accuracy
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Abstract
The utility model discloses a high accuracy spectrometer calibration device. The device comprises a plurality of standard lamps, a light mixer, and a spectrometer, wherein the light mixer comprises a plurality of inlets and outlets, the outlet of each standard lamp is connected with each inlet of the light mixer by an input optical fiber, each outlet of the light mixer is connected with an entrance slit of the spectrometer, the spectrometer is connected with a CCD detector, the spectrometer and the CCD detector are connected with a computer; the incident light enters into the spectrometer through the entrance slit and is split by a spectroscope, and then is received by the CCD detector, and the information is transmitted to the computer by the CCD detector. The structure of the high accuracy spectrometer calibration device is simple, the high accuracy spectrometer calibration device is conveniently disassembled, the spectrum line color dispersion in several nano narrow wave-ranges is realized and simultaneously the imaging of the spectrometer is debugged.
Description
Technical field
The utility model relates to spectrometer art, is specifically related to a kind of high precision spectrometer caliberating device.
Background technology
In spectroscopic diagnostics,, need to adopt the ccd detector system of high-resolution spectrometer of long-focus and little pixel at present in order to obtain detailed spectral information.Yet use this system; Once sweep the spectrum wavelength coverage and have only several nanometers; This meeting pair spectrometer system line dispersive power is accurately measured and system's picture element causes big difficult; Especially, the character of utilizing the measurement object spectral line of emission itself seems more not enough under obtaining the situation of measurement object attribute, such as at the plasma spectrometry diagnostic field, and the rotational speed and the temperature that need to utilize the frequency displacement of measuring spectral line of emission centre wavelength and broadening of spectral lines to wait the plasma of deriving usually.In the tokamak high-temperature plasma, common plasma rotational speed at several km/s to hundreds of km/s scope, corresponding centre wavelength frequency displacement from several microns to zero point several nanometers; Have only tens electron volts in the plasma boundary ion temperature, corresponding broadening of spectral lines is also very little, and this measuring accuracy to linear dispersion has proposed very high requirement.Simultaneously; A whole set of spectrometer system is preferable in CCD core image quality usually; And can take place than large deformation in the existence of borderline region owing to aberration, in order to make full use of the whole CCD chip, need the picture that image in CCD core and border be adjusted simultaneously; To obtain an optimal imaging state, this also requires in specific wavelength, to exist many spectral lines.And the standard lamp source emission line that has at present differs far away usually, in certain narrow wave band, has only the wire spectral line of few bar number even does not have.Though and existing multielement hollow cathode lamp can satisfy the requirement of measuring Wavelength calibration better on the market, however its luminous extremely weak this for long-focus low pass light quantity spectrometer, also be a difficult problem that is difficult to overcome.
The utility model content
In order to remedy the deficiency of prior art; The utility model provides a kind of can obtain comparatively concentrated spectral line in measuring narrow wave band; Under the spectrometer imaging pattern, can form images adjust to spectrometer reaches optimum Working, can become to obtain the high precision spectrometer caliberating device that accurate linear dispersion reduces measuring error under the spectral model.
The technical scheme of the utility model is following:
High precision spectrometer caliberating device; Include a plurality of standard lamps, optical mixer, spectrometer; It is characterized in that: said optical mixer includes a plurality of entry and exit, and the outlet of said each standard lamp is connected to respectively entering the mouth of optical mixer through input optical fibre, and each outlet of said optical mixer is connected on the entrance slit of spectrometer through output optical fibre; Said spectrometer is connected with ccd detector, and said spectrometer, ccd detector connect computing machine; Incident light gets into spectrometer through entrance slit, after the spectrometer beam split, receive by ccd detector, ccd detector with information uploading to computing machine.
Described high precision spectrometer caliberating device is characterized in that: described standard lamp is the standard lamp that can satisfy the various light-emitting elements of measuring needs in the spectrometer measurement scope.
Described high precision spectrometer caliberating device is characterized in that: each entry and exit of said optical mixer and the outlet of standard lamp are equipped with standard SMA fibre-optical splice.Described optical mixer is the light integrating sphere.
The utility model has the advantages that: simple in structure, the convenient disassembly of the utility model, realized the acquisition spectral line linear dispersion in the narrow wave band of several nanometers, can debug the spectrometer imaging simultaneously.
Description of drawings
Accompanying drawing is the utility model structural representation.
Embodiment
As shown in Figure 1; High precision spectrometer caliberating device includes a plurality of standard lamp 1, optical mixer 3, spectrometer 6, and it is characterized in that: said optical mixer 3 includes a plurality of entry and exit; The outlet of said each standard lamp 1 is connected to each inlet of optical mixer 3 through input optical fibre 2; Each outlet of said optical mixer 3 is connected on the entrance slit 5 of spectrometer 6 through output optical fibre 4, and said spectrometer 6 is connected with ccd detector 7, and said spectrometer 6, ccd detector 7 connect computing machines 8; Incident light gets into spectrometer 6 through entrance slit 5, after spectrometer 6 beam split, is received by ccd detector 7, and ccd detector 7 is with information uploading to computing machine 8.
Described standard lamp 1 is the standard lamp that can satisfy the various light-emitting elements of measurement needs in spectrometer 6 measurement ranges.
Each entry and exit of said optical mixer 3 and the outlet of standard lamp 1 are equipped with standard SMA fibre-optical splice.
Light by several standard lamps source (according to the measurement needs) emission arrives optical mixer through behind the input optical fibre, and the diffusion mixed light takes place in optical mixer, forms emergent light comparatively uniformly.Emergent light gets into spectrometer through the entrance slit that output optical fibre passes through spectrometer, and then carries out beam split by spectrometer, finally is imaged on the ccd detector.A whole set of spectrometer and ccd detector system rotate the line spectrum of software and data acquisition software collection specific band by computer control through wavelength.At first the mode of operation with ccd detector switches to image formation state, and system constantly adjusts according to the image quality pair spectrometer.After the imaging adjustment was accomplished, the adjustment mode of operation was to becoming spectrum to obtain line spectrum, according to the known centre wavelength of the line spectrum that measures
λ pAnd the position of the pairing pixel on ccd detector
p, utilize formula
Carry out nonlinear fitting, and then obtain the linear dispersion information of system.
Claims (3)
1. high precision spectrometer caliberating device; Include a plurality of standard lamps, optical mixer, spectrometer; It is characterized in that: said optical mixer includes a plurality of entry and exit, and the outlet of said each standard lamp is connected to respectively entering the mouth of optical mixer through input optical fibre, and each outlet of said optical mixer is connected on the entrance slit of spectrometer through output optical fibre; Said spectrometer is connected with ccd detector, and said spectrometer, ccd detector connect computing machine; Incident light gets into spectrometer through entrance slit, after the spectrometer beam split, receive by ccd detector, ccd detector with information uploading to computing machine.
2. high precision spectrometer caliberating device as claimed in claim 1 is characterized in that: described standard lamp is the standard lamp that satisfies the light-emitting element of measuring needs in the spectrometer measurement scope.
3. high precision spectrometer caliberating device as claimed in claim 1 is characterized in that: each entry and exit of said optical mixer and the outlet of standard lamp are equipped with standard SMA fibre-optical splice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205029629U CN202494518U (en) | 2011-12-07 | 2011-12-07 | High accuracy spectrometer calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205029629U CN202494518U (en) | 2011-12-07 | 2011-12-07 | High accuracy spectrometer calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202494518U true CN202494518U (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205029629U Expired - Fee Related CN202494518U (en) | 2011-12-07 | 2011-12-07 | High accuracy spectrometer calibration device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202494518U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616076A (en) * | 2013-11-13 | 2014-03-05 | 中国电子科技集团公司第四十一研究所 | Color calibration device covering complete color gamut |
| CN105424185A (en) * | 2015-11-04 | 2016-03-23 | 清华大学 | Computer assisted full-waveband spectrometer wavelength calibration method |
| CN105509895A (en) * | 2015-12-25 | 2016-04-20 | 豫西工业集团有限公司 | Radiation calibration method of spectral temperature measurer with telescopic optical system |
| CN111551253A (en) * | 2020-05-25 | 2020-08-18 | 重庆冠雁科技有限公司 | Calibration method for ensuring consistency of spectrum modules |
-
2011
- 2011-12-07 CN CN2011205029629U patent/CN202494518U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616076A (en) * | 2013-11-13 | 2014-03-05 | 中国电子科技集团公司第四十一研究所 | Color calibration device covering complete color gamut |
| CN105424185A (en) * | 2015-11-04 | 2016-03-23 | 清华大学 | Computer assisted full-waveband spectrometer wavelength calibration method |
| WO2017076228A1 (en) * | 2015-11-04 | 2017-05-11 | 清华大学 | Computer-assisted full wave-band spectrometer wavelength calibration method |
| CN105509895A (en) * | 2015-12-25 | 2016-04-20 | 豫西工业集团有限公司 | Radiation calibration method of spectral temperature measurer with telescopic optical system |
| CN105509895B (en) * | 2015-12-25 | 2018-07-24 | 豫西工业集团有限公司 | One kind having telescope optical system radiation calibration method |
| CN111551253A (en) * | 2020-05-25 | 2020-08-18 | 重庆冠雁科技有限公司 | Calibration method for ensuring consistency of spectrum modules |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20141207 |
|
| EXPY | Termination of patent right or utility model |