Abstract
Fine suspended matter such as sediment, organic matter and inorganic matter can absorb a large amount of bacteria, viruses and other harmful substances, which is a threat to human health, and water turbidity is one of the important indicators of water quality monitoring. The ratio method of the photoelectric detection about turbidity measurement has been applied, and the corresponding hardware circuit design and software design of the turbidity measurement system also have been done. The water turbidity measurement system can complete data acquisition and data analysis, and compare with the relation curves between the data measured by the system's turbidity sensor and the actual turbidity value, and the least square method is used for modeling analysis and data compensation. The experimental results show that the ratio method is more accurate than the transmission method and scattering method to measure the turbidity of water samples, and the method has better interference rejection. The system design can be used in different water turbidity measurement or correction, and it has good market application prospect.
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