Effect of Wavelength Drift on PLSR Calibration Model of Near-Infrared Spectroscopy

Qi-peng LU; Dong-min WANG; Yuan SONG; Hai-quan DING; Hong-zhi GAO

doi:10.3964/j.issn.1000-0593(2022)02-0405-05

Spectroscopy and Spectral Analysis, Volume. 42, Issue 2, 405(2022)

Effect of Wavelength Drift on PLSR Calibration Model of Near-Infrared Spectroscopy

Qi-peng LU^1、*, Dong-min WANG^{2、2; *;}, Yuan SONG^{1、1; *;}, Hai-quan DING^3、3;, and Hong-zhi GAO^3、3;

¹1. State Key Laboratory of Applied Optics Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

²2. School of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China

³3. Guang Dong Spectrastar Instruments Co., Ltd., Guangzhou 510000, China

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Figures & Tables(5)

Fig. 1. NIR spectra of wheat flour with different types of wavelength drift informantion

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Fig. 2. Calibration results of model Ⅰ and model Ⅱ

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Fig. 3. Calibration results based on the spectra with different types of wavelength drift

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Table 1. Statistical results of wavelength calibration of a certain type of instruments
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Table 1. Statistical results of wavelength calibration of a certain type of instruments
参数绝对值最大/nm 绝对值最小/nm 标准偏差/nm
a^* 1.02 0.01 0.57
b^* 1.22 0.11 0.60

Table 2. Prediction results based on the spectra with different types of wavelength drift information

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Table 2. Prediction results based on the spectra with different types of wavelength drift information

波长偏移量/cm^-1	分析结果
	短波区 (9 900~6 000 cm^-1)		长波区 (6 000~4 100 cm^-1)
	R_p	RMSEP/%	R_p	RMSEP/%
-32	0.97	3.69	0.98	3.36
-24	0.97	2.46	0.99	2.24
-16	0.98	2.24	0.99	1.50
-8	0.98	1.19	0.99	0.89
8	0.98	0.91	0.99	0.51
16	0.98	0.95	0.99	0.98
24	0.97	1.75	0.99	0.95
32	0.97	3.27	0.98	1.30
σ8	0.99	0.30	0.99	0.29
σ16	0.98	1.38	0.99	0.36
σ24	0.98	1.77	0.99	0.33
σ32	0.97	2.28	0.98	0.17

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Qi-peng LU, Dong-min WANG, Yuan SONG, Hai-quan DING, Hong-zhi GAO. Effect of Wavelength Drift on PLSR Calibration Model of Near-Infrared Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2022, 42(2): 405

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Paper Information

Category: Research Articles

Received: Jan. 15, 2021

Accepted: Apr. 6, 2021

Published Online: Apr. 2, 2022

The Author Email: LU Qi-peng (luqipeng@126.com)

DOI:10.3964/j.issn.1000-0593(2022)02-0405-05

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Statistical results of wavelength calibration of a certain type of instruments

Table 1. Statistical results of wavelength calibration of a certain type of instruments

Table 2. Prediction results based on the spectra with different types of wavelength drift information

Table 2. Prediction results based on the spectra with different types of wavelength drift information