Water quality monitoring probe and method based on ultraviolet visible absorption spectrum and fluorescence spectrum

Abstract

The invention relates to a water quality monitoring probe based on an ultraviolet visible absorption spectrum and a fluorescence spectrum. The water quality monitoring probe comprises a flash lamp, a first convex lens, a first water quality monitoring window, a second water quality monitoring window, a multi-wavelength laser source for exciting fluorescent light, a third water quality monitoring window, a chopper, a convex lens, an ultraviolet visible fiber spectrum measurer, a controller signal processor, a flash lamp controller, a multi-wavelength laser source controller for exciting fluorescent light and a stepping motor. A water sample can be scanned by a continuous ultraviolet visible spectral region, continuous absorbancy information in water quality is acquired, various parameters in the water quality are acquired by a diversified analyzing means, water characteristic information in the various data is calculated, a correcting model between spectrum data and the water quality parameters is established according to the data, and the model is used as a tool to realize water quality parameter analysis.

Description

technical field [0001] The invention relates to the technical field of water quality monitoring equipment, in particular to a water quality monitoring probe and method based on ultraviolet-visible absorption spectrum and fluorescence spectrum. Background technique [0002] The currently used single probe for multi-parameter monitoring of water quality has no wavelength calibration, which leads to drift phenomenon in spectral measurement, which in turn causes unstable and drift phenomenon in the measurement results of water quality parameters. At the same time, the resolution of the spectrometer it uses is low, which is not conducive to the analysis of water quality parameters. In addition, the currently used probe is based on absorption spectrum measurement, which has a large error for low concentration measurement occasions. Contents of the invention [0003] The object of the present invention is to provide a water quality monitoring probe and method based on ultraviolet...

AI Technical Summary

Problems solved by technology

[0002] The current multi-parameter monitoring of water quality with a single probe has no wavelength calibration, which leads to drift phenomenon in spectral measurement, which in turn causes unstable and drift phenomenon in the measurement results of water quality parameters.

At the same time, the resolution of the spectrometer it uses is low, which is not conducive to the analysis of water quality parameters. In addition, the currently used probe is based on absorption spectrum measurement, which has a large error for low concentration measurement occasions

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