On-Line Component Analysis of Cement Powder Using LIBS Technology
GUO Zhi-wei1, 2, SUN Lan-xiang1*, ZHANG Peng1, 3, QI Li-feng1, YU Hai-bin1, ZENG Peng1, ZHOU Zhong-han1, 3, WANG Wei1, 3, SHI You-zhen1, 4
1. Laboratory of Industrial Control Network and System, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
2. College of Information Science and Engineering, Northeastern University, Shenyang 110819, China
3. University of Chinese Academy of Sciences, Beijing 100049, China
4. Shenyang Jianzhu University, Shenyang 110168, China
Abstract：In the process of cement production in the industrial field, the content of each component in the cement directly affects the quality of the cement. Therefore, it is of great significance to quickly and accurately monitor the content of each component in the cement. In this paper, the laser induced breakdown spectroscopy (LIBS) technology is used to detect the powder cement, and the powder cement are put in a two-dimensional moved platform without any pretreatment. The spectral data is processed by normalization and principal component analysis(PCA) firstly, which is used as the input of the model. In order to analyze the elements of Ca, Si, Al, Fe and Mg in cement, we build the models based on Partial least squares(PLS) and Support Vector Regression (SVR) as the comparison of methods. In addition, the comparison of measurement methods is between cement powder detection and cement tablet detection. The experimental results show that in this type of experiment, the SVR method is more advantageous than the PLS method because of the relationship between the element concentration and the strength of its characteristic line of the cement samples. The accuracy of the direct measurement of the cement powder is close to that of the tablet type, and it demonstrated the feasibility of on-line analysis of cement powder using LIBS technology under this type of experiment.
Key words：LIBS; Partial least squares; Support Vector Regression; PCA; Cement
[1] Aldridge L P. Cement and Concrete Research, 1982, 12(3); 381.
[2] Gottfried J L, De Lucia Jr F C, Manson C A, et al. Analytical and Bioanalytical Chemistry, 2009, 395(2)：283.
[3] MA De-min, MA Yan-hua, SHU Rong, et al(马德敏，马艳华，舒 嵘，等). Infrared and Laser Engineering(红外与激光工程), 2007, 36(5): 656.
[4] Mansoori A, Roshanzadeh B, Khalaji M, et al. Optics and Lasers in Engineering, 2011, 49(3): 318.
[5] Yin Hualiang, Hou Zongyu, Wang Zhe, et al. Journal of Analytical Atomic Spectrometry, 2016, 31(12): 2384.
[6] GUO Rui, ZHANG Lei, FAN Juan-juan, et al(郭 锐，张 雷，樊娟娟，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2016, 36(7)：2249.
[7] LI Wen-hong, WU Zhi-xiang, WANG Rui-wen, et al(李文宏，武志翔，王芮雯，等). Chinese Journal of Lasers(中国激光), 2014，41(6)：276.
[8] Hadad K, Sadeghpour H, Nematollahi M R, et al. Progress in Nuclear Energy, 2016, 90: 204.
[9] Zhang Lei, Gong Yao, Li Yufang, et al. Spectrochimica Acta Part B: Atomic Spectroscopy, 2015, 13: 167.
[10] SUN Lan-xiang, XIN Yong, CONG Zhi-bo, et al(孙兰香，辛 勇，丛智博，等). Acta Optica Sinica(光学学报), 2014, 34(5): 292.
[11] Zhang Bo, Yu Haibin, Sun Lanxiang, et al. Applied Spectroscopy, 2013, 67(9): 1087.
[12] Kong Haiyang, Sun Lanxiang, Hu Jingtao, et al. Plasma Science and Technology, 2015, 17(11): 964.
[13] Boucher T F, Ozanne M V, Carmosino M L, et al. Spectrochimica Acta Part B, 2015，107：1.
[14] HU Li, ZHAO Nan-jing, LIU Wen-qing, et al(胡 丽，赵南京，刘文清，等). Acta Optica Sinica(光学学报), 2015, 35(6): 314.
[15] Yang Hongxing, Fu Hongbo, Dong Fengzhong, et al. Chin. Phys. B, 2016, 25(6): 065201.
[16] Wang Zhe, Feng Jie, Li Lizhi, et al. Journal of Analytical Atomic Spectrometry, 2011, 26(11): 2302.
[17] Feng Jie, Wang Zhe, Li Zheng, et al. Spectrochimica Acta Part B: Atomic Spectroscopy, 2010, 65(7): 549.
[18] Feng Jie, Wang Zhe, West L, et al. Analytical and Bioanalytical Chemistry, 2011, 400(10): 3261.
[19] Tian Ye, Wang Zhennan, Han Xiaoshuang, et al. Spectrochimica Acta Part B: Atomic Spectroscopy, 2014, 102: 52.
