An Intelligent Turbidimeter for Monitoring Suspended Sediment
Turbidity is regard as a key technical parameter in the water quality measurement. However, tur-bidimeter for water quality measurement is based on scattered light measurement. The electroop-tical characteristic of light emitter and detector has a close relationship with the environmental temperature. Fluctuations in water temperature can potentially affect electronic components and cause output signal errors in turbidimeter. Decrease or eliminate temperature errors is necessary. In this paper, we present the design and testing of an intelligent turbidimeter which could com-pensate the temperature errors by soft programming. Laboratory testing showed that the method carried by MCU which is used to compensate the temperature errors by soft programming is sim-ple and effective; it can improve the error compensation precision on turbidimeter greatly. Further testing results showed nearly linear relations between the concentration of the standard solutions and the measured turbidity. The measurement reproducibility is very high and the maximum shift is 0.02 NTU. The generic design and good performance of the turbidimeter suggests potential for application in water quality measurement.
Turbidimeter Suspended Sediment Scattered Light Temperature Compensation
Haijiang Tai Daoliang Li Yaoguang Wei Daokun Ma Qisheng Ding
College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, P. College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, P.
国际会议
南昌
英文
1083-1087
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）