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Study on Imaging of Extracting Process Based on Electrical Capacitance Tomography for Traditional Chinese Medicine

Author: WangGuiQuan
Tutor: ChenDeYun
School: Harbin University of Science and Technology
Course: Applied Computer Technology
Keywords: Herbal Extracts Capacitance Tomography Image reconstruction Gauss-Newton-NL2SOL Polynomial acceleration
CLC: TP391.41
Type: Master's thesis
Year: 2011
Downloads: 25
Quote: 0
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Abstract


Chinese medicine extraction process is one of the Chinese pharmaceutical , herbal extract is designed to extract herbs medicinal ingredient to avoid the loss of medicinal ingredients and ineffective ingredients dissolution . As medicine in a closed container extraction is carried out within the traditional Chinese medicine sector mostly through experience to judge extraction conditions apply without a real-time detection technology, not only affect the extraction of traditional Chinese medicine , but also a waste of resources . ECT closed container in the detection of the direction of the multiphase flow has a lot of applications, it is an object by measuring the capacitance between the electrodes around the surface to calculate the permittivity distribution within the body of the technology, the analysis of herbal extracts ECT technology can solve the difficulties. In this paper, an algorithm is suitable to study herbal extracts , herbal extracts requires real-time and high precision, so the algorithm requires imaging speed , image clarity , polynomial algorithm can speed up the imaging speed acceleration , while Guass-Newton-NLSOL algorithm to solve the size of the imaging process residues the amount of problems , and to improve the imaging accuracy. In this paper, Guass-Newton-NLSOL and polynomial acceleration algorithm applies a combination of herbal extracts . This selection phase flow experiments for the study , using a continuous countercurrent extraction methods to achieve ethanol extract of Salvia Salvia particles , the establishment of the working principle of the sensor mathematical model to 12 electrode capacitance tomography system for the study. Conduct a series of simulation experiments , and with the back-projection algorithm and the traditional linear polynomial accelerated image reconstruction algorithm to compare the experimental results show that this method has an imaging high precision, small error , etc., can solve the residual problem , and has good stability and convergence for traditional Chinese medicine extraction process.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
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