Multi-source optical spectrum syncretizing portable water quality analysis meter

Abstract

The present invention relates to a multi-source spectrum integration portable water quality analyzer, which includes a optical system and a detection control system. The optical system is provided with an integrated laser, a deuterium and halogen lamp light source and a dual spectrum detector, and is used for scanning a ultraviolet-visible (UV / Vis) transmission spectrum and a emission spectrum of water samples, such as fluorescence spectrum, Raman spectrum and so on and changing it into a digital signal. The integrated laser can realize the digital control switch between wavelength and power, and the laser with different wavelengths can be output from the same SMA905 interface in a time sharing mode. The detection control system is provided with a embedded data-processing unit .On one hand, it calculates water quality index value according to water sample spectral data collected by the optical system; on the other hand, it controls the work of the whole apparatus in an orderly manner and through a screen and a keyboard realizes interaction with users. So water quality transmission spectrum analyzers and emission spectrum analyzers such as fluorescence spectrometer, Raman spectrometer and so on, can be integrated together and significantly improve the accuracy of detection. Because of the use of some special designs such as a lithium battery and 360 degree light receiving and so on, it is compact in structure and portable to use.

Description

technical field [0001] The invention belongs to the technical field of resources and environment, and is used for rapid detection of water quality indicators, in particular to a multi-source spectral fusion portable water quality analyzer. Background technique [0002] Comprehensive organic indicators (such as TOC, COD, BOD, DOM, DOC, PAHs and permanganate index) are important national indicators to measure the degree of water pollution. [0003] Traditional chemical analysis methods have a long history, mature technology, high analytical precision and reliable results. However, its shortcomings such as long analysis period, secondary pollution, and the need for professional analysts to operate make this method unusable in the field or without professional analysts, and will cause secondary pollution to the environment. [0004] The comprehensive organic index analysis method of water quality based on spectral analysis has obvious advantages such as no chemical reagent poll...

AI Technical Summary

Problems solved by technology

The disadvantage of the fluorescence analysis method is that it is easily affected by the environment. The fluorescence itself has unstable factors such as quenching, self-absorption, and internal filtering. The directly measured fluorescence spectrum data also contains the spectral information of the water itself (such as the Mann spectrum), and other interference and noise information

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