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Alternative TitleMethod for automatically correcting laser induced plasma emission spectrum continuous background interference
于海斌; 孙兰香; 杨志家; 郭前进; 辛勇; 丛智博
Rights Holder中国科学院沈阳自动化研究所
Patent Agent沈阳科苑专利商标代理有限公司 21002
Other AbstractThe invention discloses a method for automatically correcting laser induced plasma emission spectrum continuous background interference. By using a computer control program, the method comprises the following steps of: 1) collecting a spectrum which is emitted by the plasma and has continuous background interference, and seeking all the minimum values on the spectrum, 2) calculating a threshold value of the minimum value, 3) comparing the rate of change of adjacent minimum values with the threshold value, and deducting the minimum value out of the minimum threshold value scope 4) fitting the deducted residue minimum value by using a piecewise polynomial function so as to acquire a fitting function as an estimating function of the spectrum continuous background used for estimating the background, and 5) subtracting an estimated background value from the spectral intensity having continuous background interference so as to acquire the corrected laser induced plasma emission spectrum. Without manual operation, the method of the invention can realize once automatic correction for spectrum background in a whole spectral region, can correct accurately and rapidly, is applied to both simple spectrum and complex spectrum, and promotes the property of analyzing sample component.
PCT Attributes
Application Date2008-12-12
Date Available2011-11-09
Application NumberCN200810229662.0
Open (Notice) NumberCN101750401A
Contribution Rank1
Document Type专利
Recommended Citation
GB/T 7714
于海斌,孙兰香,杨志家,等. 自动校正激光诱导等离子体发射光谱连续背景干扰的方法[P]. 2010-06-23.
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