A Simple Temperature Compensation Method for Turbidity Sensor
Turbidity sensor for water treatment applications are based on scattered light measurement. The electrooptical 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 turbidity sensor. Decrease or eliminate temperature error is necessary. With this background we have taken the temperature experiment of turbidity sensor developed by us. 11 different concentrations were measured, ranging from 0 to 100NTU. Each solution was cooled to it, and then gradually heated to-ttTC. The output signal of sensor increased according to the rise of temperature found from the experiment. In order to compensate the temperature errors, we developed a novel method to take temperature compensation by using software. The method carried by MCU which is used to compensate the measurement errors by soft programming is simple and effective; it can improve the error compensation precision on sensors greatly.
Turbidity Sensor Temperature compensation software compensation.
Haijiang Tai Daoliang Li Yaoguang Wei Daokun Ma Qisheng Ding
College of Information and Electrical Engineering, China Agricultural University,Beijing 100083, P.R College of Information and Electrical Engineering, China Agricultural University,Beijing 100083, P.R
国际会议
南昌
英文
650-658
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）