Temperature compensation method of system for detecting heavy metals in water environment
A temperature compensation and detection system technology, applied in the detection field, can solve the problem that the temperature compensation method cannot effectively improve the detection accuracy of the heavy metal detection system in the water environment, etc.
Inactive Publication Date: 2016-03-30
GUILIN UNIV OF ELECTRONIC TECH
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[0004] The invention provides a temperature compensation method for a heavy metal detection system in a water environment, which solves the problem that the temperature compensation method in an existing heavy metal detection system in a water environment cannot effectively improve the detection accuracy of a heavy metal detection system in a water environment
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[0030] The present invention will be further described below in conjunction with embodiments, but the present invention is not limited to these embodiments.
[0031] A temperature compensation method for a water environment heavy metal detection system is to improve the sensitivity of data processing when detecting heavy metals in the water environment by establishing a high-order multiple regression inverse model, thereby improving the detection accuracy of the water environment heavy metal detection system.
[0032] The water environment heavy metal detection system consists of a management center and at least one monitoring terminal. Each monitoring terminal is equipped with an electrochemical sensor and a temperature sensor to detect heavy metals in the water environment and ambient temperature; obtain the polarization current I of the water environment i , Polarization potential E i And ambient temperature U T , And then obtain the concentration of heavy metals in the water envi...
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The invention discloses a temperature compensation method of a system for detecting heavy metals in a water environment. After acquired polarization current and polarization potential are subjected to smoothing processing through differential filtering, a fitted regression equation inverse model is established, a temperature compensation model is obtained through solution of the deviation, the square deviation and the partial derivative, judgment is performed in combination with the REF (relative error factor), the number of fitting times is increased automatically for fitting again when the standard is not met, a high-order multivariate regression inverse model with the higher precision is constructed, the temperature compensation model is applied to detection of the heavy metals in the water environment, and the detection precision can be improved.
Description
Technical field [0001] The invention relates to the field of detection, in particular to a temperature compensation method for a heavy metal detection system in a water environment. Background technique [0002] With the rapid development of my country's industrialization and urbanization, industrial wastewater and domestic sewage with heavy metals are continuously discharged into rivers and lakes, and heavy metal pollution has become increasingly serious, which has seriously affected people's life safety. Heavy metal pollution has become an urgent problem at home and abroad, and the accuracy and effectiveness of heavy metal detection have become particularly important. [0003] The existing methods for detecting heavy metals in the water environment include electrochemical analysis. The electrochemical analysis method analyzes the concentration of heavy metals based on the changes in the electrical signal generated by the ion electrode chemically reacting with heavy metal ions in ...
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IPC IPC(8): G01N27/26
CPCG01N27/26
Inventor 黄廷磊林科张纪元刘杰覃志松张姿卢艳梅甘国宁
Owner GUILIN UNIV OF ELECTRONIC TECH