Method and system for online simultaneous detection of low turbidity and high turbidity

Abstract

The invention discloses a method and system for online simultaneous detection of low turbidity and high turbidity. The system comprises a detection pool unit, an optical system unit and a software calculation processing data unit, wherein the optical unit comprises two test channels; one test channel is used for carrying out a scattering test, and the other test channel is used for carrying out atransmission test; the two test channels comprise a light-emitting element and two photosensitive elements; the light-emitting element and the scattering photosensitive element in the optical system unit are mounted on a circuit board at a nonlinear angle; the transmission photosensitive element is mounted at a position opposite to the straight line of the light-emitting element and is used for carrying out the scattering test and the transmission test respectively; when the optical unit is used for testing a water sample, the scattering test and the transmission test are carried out on the water sample at the same time; and a scattering signal threshold, a light intensity threshold, a multi-stage scattering current, a multi-stage transmission current, and a scattering current and a transmission current are set to switch to test the turbidity of the water sample. According to the method and the system, the actual requirements of water environment turbidity monitoring in China can be optimized.

Description

technical field [0001] The invention relates to the field of field detection, in particular to an online method and system for simultaneously detecting low turbidity and high turbidity. Background technique [0002] Turbidity is not only the most important physical appearance index to characterize water quality, but also means the content of various toxic and harmful substances in water, so it is very important to accurately measure turbidity in water. [0003] As the source of life, water is directly related to human health and industrial production quality, but water quality monitoring is not easy. In the actual monitoring process, there are many indicators to measure water quality, and turbidity is one of the important indicators to measure water quality. , waterworks divert water from places with less pollution, although the water quality has improved, but the cost of water production has been increased, and with different seasons (tidal rivers) and gas phases, even the ...

AI Technical Summary

Problems solved by technology

Therefore, the current measurement of turbidity has the phenomenon of poor signal stability, low validity and accuracy, small range, large error, and low stability, which makes the measurement very difficult and cannot meet the engineering needs in practical applications.

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