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Establishment and correction of an Echelle cross-prism spectrogram reduction model
Zhang, R.; Bayanheshig; X. T. Li and J. C. Cui
2017
Source PublicationOptics Communications
Volume403
AbstractThe accuracy of an echelle cross-prism spectrometer depends on the matching degree between the spectrum reduction model and the actual state of the spectrometer. However, the error of adjustment can change the actual state of the spectrometer and result in a reduction model that does not match. This produces an inaccurate wavelength calibration. Therefore, the calibration of a spectrogram reduction model is important for the analysis of any echelle cross-prism spectrometer. In this study, the spectrogram reduction model of an echelle cross-prism spectrometer was established. The image position laws of a spectrometer that varies with the system parameters were simulated to the influence of the changes in prism refractive index, focal length and so on, on the calculation results. The model was divided into different wavebands. The iterative method, least squares principle and element lamps with known characteristic wavelength were used to calibrate the spectral model in different wavebands to obtain the actual values of the system parameters. After correction, the deviation of actual x- and y-coordinates and the coordinates calculated by the model are less than one pixel. The model corrected by this method thus reflects the system parameters in the current spectrometer state and can assist in accurate wavelength extraction. The instrument installation and adjustment would be guided in model-repeated correction, reducing difficulty of equipment, respectively. (C) 2017 Elsevier B.V. All rights reserved.
Indexed Bysci ; ei
Language英语
Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/59447
Collection中科院长春光机所知识产出
Recommended Citation
GB/T 7714
Zhang, R.,Bayanheshig,X. T. Li and J. C. Cui. Establishment and correction of an Echelle cross-prism spectrogram reduction model[J]. Optics Communications,2017,403.
APA Zhang, R.,Bayanheshig,&X. T. Li and J. C. Cui.(2017).Establishment and correction of an Echelle cross-prism spectrogram reduction model.Optics Communications,403.
MLA Zhang, R.,et al."Establishment and correction of an Echelle cross-prism spectrogram reduction model".Optics Communications 403(2017).
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