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Reduction of the impact of differences in flexible conveying tubes on on-line spectral analysis
Author(s): Xingwei Hou; Ling Lin; Mengqiu Zhang; Gang Li
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Paper Abstract

With the continuous development of spectral analysis technology, on-line spectral analysis technology has been widely applied. It can real-time monitor the key links in the process of liquid transportation, and provide real-time guidance for reliable and efficient liquid delivery. In the process of non-sampling real-time measurement of the solution in a flexible conveying tube, the accuracy of the spectral analysis is reduced due to the differences in optical parameters of the flexible conveying tubes. Therefore, this paper studies the effects of differences in flexible conveying tubes on on-line spectral analysis. A standard solution calibration method was proposed to suppress the interference caused by the differences of flexible conveying tubes based on the modified Lambert Beer's law. The calibrated spectral data is modeled by partial least squares regression to reduce the analysis error introduced by the optical differences of the flexible conveying tubes. An experiment was designed to verify the feasibility of the method by using a mixed solution of Intra-lipid and India-Ink as an analytical sample and using a polyvinyl chloride (PVC) material tube as a flexible conveying tube. The experimental results show that the method of calibrating the differences of the flexible conveying tubes by the standard solution is feasible, and effectively inhibits the impact of the differences of the conveying tubes on the online spectral analysis.

Paper Details

Date Published: 9 November 2018
PDF: 7 pages
Proc. SPIE 10826, Infrared, Millimeter-Wave, and Terahertz Technologies V, 1082619 (9 November 2018); doi: 10.1117/12.2501189
Show Author Affiliations
Xingwei Hou, Tianjin Univ. (China)
Ling Lin, Tianjin Univ. (China)
Mengqiu Zhang, Tianjin Univ. (China)
Gang Li, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 10826:
Infrared, Millimeter-Wave, and Terahertz Technologies V
Cunlin Zhang; Xi-Cheng Zhang; Masahiko Tani, Editor(s)

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