Title:
METHOD FOR CORRECTING MEASURING-POINT-FREE TEMPERATURE COMPENSATION MODEL DURING ONLINE APPLICATION OF NEAR INFRARED SPECTRUM ANALYZER
Document Type and Number:
WIPO Patent Application WO/2017/084118
Kind Code:
A1
Abstract:
A method for correcting a measuring-point-free temperature compensation model during online application of a near infrared spectrum analyzer, comprising: collecting near infrared spectrums of various samples at different temperature levels; separately performing pretreatment and principal component analysis for temperature and physical property parameters to be measured on the collected spectrums; then, merging the obtained spectrums to generate new spectrum data, and modeling the spectrum data by means of partial least squares to obtain a measured value at the present moment; and finally constructing an online recursive algorithm to complete a near infrared online measurement with a measuring-point-free temperature compensation function. In the method, temperature is used as a separated and implicit factor variable and participates in the process of near infrared modeling. Therefore, when near infrared is used for measurement, physical property measurements at different temperatures can be completed depending on the adaptability of the model to the temperature without direct temperature measurement information and related calculations, so that the established model has a better generality. The online recursive algorithm in the method has a good adaptability to variations of sample temperatures and other measurement conditions.
Inventors:
LUAN XIAOLI (CN)
ZHAO ZHONGGAI (CN)
LIU FEI (CN)
ZHAO ZHONGGAI (CN)
LIU FEI (CN)
Application Number:
PCT/CN2015/096374
Publication Date:
May 26, 2017
Filing Date:
December 04, 2015
Export Citation:
Assignee:
UNIV JIANGNAN (CN)
International Classes:
G01N21/359
Foreign References:
| CN104713846A | 2015-06-17 | |||
| CN102954946A | 2013-03-06 | |||
| CN101561325A | 2009-10-21 | |||
| CA2382113A1 | 2001-03-08 |
Other References:
CHU, XIAOLI ET AL: "Development of Robust Near Infrared Analysis and Calibration Model 1-6 (I): The Effect of the Temperature of the Samples", SPECTROSCOPY AND SPECTRAL ANALYSIS, vol. 24, no. 06, 30 June 2004 (2004-06-30)
Attorney, Agent or Firm:
JW IP LAW FIRM (CN)
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