Analysis of misalignment sensitivity of generalized ring resonator for the trace gas concentration detection instrument based on CRDS

	Analysis of misalignment sensitivity of generalized ring resonator for the trace gas concentration detection instrument based on CRDS
	Cui, L. and C. Yan
	2016
发表期刊	Chemical Engineering Transactions
卷号	55
摘要	An automatic algorithm to rapidly process the spectrogram of the echelle grating spectrometer was proposed based on the linear fitting method of centroid extraction, solving the problem that the echelle grating spectrometer can not calibrate wavelength of incident rays through the two-dimensional spectrogram which was formed by cross dispersion. The background correction method is adopted to process the spectrogram based on the distribution characteristics of background light of the spectrogram of echelle grating spectrometer, thereby the calculation efficiency of the optical spot extraction algorithm of the follow-up spectrogram of echelle grating spectrometer was improved. The curve fitting center positioning algorithm based on centroid was employed to improve the extraction precision of the optical spot position to the sub-pixel magnitude. The auto-match model of the theoretical spectrogram of echelle grating spectrometer and the actual two-dimensional spectrogram were established and the method of interpolation was adopted to calculate the wavelength at the coordinate position, which is not listed in the recovery model of the spectrogram based on the linear dispersion characteristics of optical grating. The result shows that: the processing time of the whole spectrogram by this algorithm does not exceed 3 s and the wavelength extraction precision is up to 10-2nm, not only achieving the automatic wavelength extraction of the echelle grating spectrometer but also improving the wavelength extraction precision. 2016, Science Press. All right reserved.
文章类型	期刊
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56893
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Cui, L. and C. Yan. Analysis of misalignment sensitivity of generalized ring resonator for the trace gas concentration detection instrument based on CRDS[J]. Chemical Engineering Transactions,2016,55.
APA	Cui, L. and C. Yan.(2016).Analysis of misalignment sensitivity of generalized ring resonator for the trace gas concentration detection instrument based on CRDS.Chemical Engineering Transactions,55.
MLA	Cui, L. and C. Yan."Analysis of misalignment sensitivity of generalized ring resonator for the trace gas concentration detection instrument based on CRDS".Chemical Engineering Transactions 55(2016).