Novel double-beam water quality multi-parameter testing device

Abstract

The invention discloses a novel double-beam water quality multi-parameter testing device which comprises a xenon lamp, a first optical fiber, an optical fiber collimating device, a measuring cell, anoptical fiber coupling device, a second optical fiber and a spectrograph. The light inlet of the optical fiber collimating device is connected with a light outlet of the xenon lamp through the first optical fiber. The light inlet of the measuring cell is connected with the light outlet of the optical fiber collimating device. The light inlet of the optical fiber coupling device is connected with the light outlet of the measuring cell. The light inlet of the spectrograph is connected with the light outlet of the optical fiber coupling device through the second optical fiber. Compared with the prior art, the novel double-beam water quality multi-parameter testing device can improve the comprehensiveness and accuracy of water pollutant monitoring.

Description

technical field [0001] The invention relates to the technical field of water pollution detection, in particular to a novel double-beam water quality multi-parameter testing device. Background technique [0002] In recent years, with the increasingly serious situation of water pollution and people's high attention to environmental issues, water pollution detection technology has achieved rapid development. [0003] The traditional water quality detection method is chemical detection, which measures water quality parameters through the reaction of chemical reagents. This detection method has secondary pollution such as a large amount of waste liquid, the steps are cumbersome and time-consuming, and it is impossible to realize automatic real-time online measurement. With the rapid development of new materials and integrated circuits, spectroscopic water quality detection technology has gradually become a hot spot. It has the advantages of simple operation, fast speed, and no s...

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Problems solved by technology

[0004] At present, most of the spectroscopic water quality analyzers on the market are single-wavelength or dual-wavelength, and the test cannot fully reflect the water pollution situation, while the full-spectrum method can detect almost all water quality pollutants, but there are currently low energy in the ultraviolet band in the optical path that leads to measurement parameters. Difficult to distinguish, visible light is easy to saturate, different optical paths need to be replaced to measure different concentrations, Y-type optical fiber double beams are greatly affected by interference, and there is a risk of error, etc.

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