Novel water quality analysis meter

Abstract

The present invention relates to a novel water analyzer, which belongs to the field of measurement technology. Particularly, the present invention comprises a deuterium lamp light source, a reflector which can send the light screened from an aholographic concave grating to a light dividing lens, a wavelength scanning system, a detector, an open circulating pool and a filter, a 35BY stepping driving motor in the inner system, a microprocessor, a system monitoring and other periphery circuits, an amplifier, an A / D transformer, a 8051 single chip microcomputer and a LED monochromatic source. Thedevice is provided with the basic functions of twin optical circuit multi-wavelength spectrum detecting and analyzing; the device is suitable for waterproof and airproof because of the bar-shaped structure and the relatively small volume. With the open circulating pool, the device can be placed into the water or solution freely; so the on-line spot detecting and analyzing are realized.

Description

technical field [0001] The invention relates to a water quality analyzer, in particular to an underwater water quality analyzer using a rod-shaped spectrophotometric system. Background technique [0002] At present, the main technical principles of online automatic analyzers include chemical titration, electrochemical measurement, and visible-ultraviolet-visible spectrophotometry. The traditional spectrophotometry is to measure the absorbance of light in a specific wavelength range of a substance. The qualitative and quantitative analysis of the substance is carried out. When monochromatic parallel light of a defined wavelength passes through the measurement solution, light absorption occurs. The greater the concentration of the substance, or the thicker the liquid layer, the stronger the absorption. Then prepare a series of standard solutions with different concentrations, and use a spectrophotometer to measure the absorbance of each standard solution, so as to make a sta...

AI Technical Summary

Problems solved by technology

On-line water quality analysis instruments, especially ultraviolet on-line analysis instruments, have gradually adopted the national standard chemical analysis method after sampling, such as the COD detection method in water quality analysis. The national standard is the potassium permanganate method, which takes a long time and requires chemical reagents. Secondary pollution, the 254nm ultraviolet replacement method commonly used at present, although no reagent is needed, and it can be measured directly on site, and the measurement can be completed in less than 1 second. It is fast and simple, but it is generally limited to single-wavelength scanning and has limitations. bigger

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