Water quality detection device and water quality detection method

Abstract

The invention is applicable to the technical field of multispectral detection and provides a water quality detection device and a water quality detection method. The water quality detection device comprises a plurality of monochromatic LED light sources, photoelectric detectors in one-to-one correspondence with the monochromatic LED light sources, an MCU and a temperature sensor, wherein the photoelectric detectors and the temperature sensor are connected with the MCU, the MCU is connected with the monochromatic LED light sources, the photoelectric detectors are used for detecting original light intensity signals emitted by every monochromatic LED light source and penetrating a detected water sample and sending the light intensity signals to the MCU, the temperature sensor is used for detecting the temperature of the detected water sample and sending the temperature of the detected water sample to the MCU, and the MCU is used for processing the received original light intensity signals and the temperature of the detected water sample so as to obtain water quality parameter detection indexes of the detected water sample. The water quality detection device is low in cost and can achieve real-time online detection by being mounted in a household water purifier.

Description

technical field [0001] The invention belongs to the technical field of multispectral detection, and in particular relates to a water quality detection device and a detection method thereof. Background technique [0002] Water is the source of life. As the problem of water pollution becomes more and more serious, people pay more and more attention to the safety of daily drinking water. Therefore more and more families have installed household reverse osmosis water purifiers. However, there is currently no effective method to evaluate the purification effect of the water produced by the water purifier. This brings about a problem that consumers cannot effectively evaluate the purification effect of the water purifier, and cannot accurately judge when the filter element needs to be replaced. [0003] At present, some high-end water purifiers are equipped with water quality TDS (Total dissolved solids) detectors to evaluate the water purification effect. However, the TDS indi...

AI Technical Summary

Problems solved by technology

At present, there is a method of ultraviolet spectroscopy, which can realize fast and multi-parameter water quality detection; but this method is costly (tens of thousands), large in size, high in power consumption, and the equipment needs to be strictly calibrated before leaving the factory, so it cannot be installed in household water purifiers

Images