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Solution metal ion concentration detection method, terminal equipment and storage medium

A metal ion concentration and metal ion technology, which is applied in measurement devices, color/spectral characteristic measurement, instruments, etc., to achieve the effects of improving concentration detection accuracy, eliminating noise, and high signal-to-noise ratio

Active Publication Date: 2020-05-26
SHAOYANG UNIV
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Problems solved by technology

At present, the most commonly used wavelet analysis method in engineering practice is wavelet threshold denoising method, including hard threshold method and soft threshold method, but both methods have their limitations

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  • Solution metal ion concentration detection method, terminal equipment and storage medium
  • Solution metal ion concentration detection method, terminal equipment and storage medium
  • Solution metal ion concentration detection method, terminal equipment and storage medium

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Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] see figure 1 As shown, a method for detecting the concentration of metal ions in a solution based on adaptive wavelet threshold preprocessing disclosed in the embodiment of the present invention includes the following steps:

[0037] Step 1, use the ultraviolet fiber optic spectrometer to measure the noisy spectral signal of the solution, and intercept a section...

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Abstract

The invention discloses a solution metal ion concentration detection method, terminal equipment and a storage medium, and the method comprises the following steps: firstly, measuring a noisy spectralsignal of metal ions in a solution through employing an ultraviolet optical fiber spectrometer, and carrying out M-layer discrete wavelet transform of the obtained noisy spectral signal; secondly, setting a threshold initial value and a step length of each layer of wavelet coefficient; determining an optimal threshold value of each layer by gradually increasing the threshold value and based on a judgment criterion that the wavelet coefficient is set to be zero when the wavelet coefficient is smaller than the threshold value when the sum of the wavelet coefficients changes slowly and the relative error is smaller than a preset quantization ratio; denoising the wavelet coefficient of the corresponding layer by using the optimal threshold of each layer, and reconstructing to obtain an enhanced spectral signal with high signal-to-noise ratio and low distortion degree; making modeling analysis on enhanced spectral signals of metal ions in a solution, and the concentration of the metal ionsin the solution is analyzed. The invention can improve the concentration detection precision of the metal ions in the solution.

Description

technical field [0001] The invention belongs to the field of spectral quantitative detection, and more specifically relates to a solution metal ion concentration detection method based on adaptive wavelet threshold preprocessing, a terminal device and a storage medium. Background technique [0002] In the zinc hydrometallurgical purification process, the zinc sulfate solution contains a large amount of zinc and various trace impurity ions. Excessive impurity ions will cause plate burning during the electrolysis process, seriously affecting production efficiency and wasting energy. In actual production, the detection of impurity ions mainly adopts the method of manual offline analysis, which has the effect of adjusting blindness and detection lag, and affects the stability of production and the quality of products. Therefore, there is an urgent need for online detection of impurity ions in the purification process of zinc hydrometallurgy. [0003] Due to the advantages of f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/33G01N21/78G06K9/00
CPCG01N21/33G01N21/78G01N2021/0181G06F2218/06Y02P10/20
Inventor 周风波罗婷
Owner SHAOYANG UNIV
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