Design of Slurry Concentration Meter Based on Kalman Filtering
A Gamma-ray concentration meter based on Kalman filtering was designed,and the relationship between ray intensity attenuation and slurry concentration was established by analyzing the measurement principle of ray concentration meter.To suppress the disturbance of the results,an optimal estimation of ray intensity was actualized by using Kalman filtering.The corresponding concentration is segmentally simulated and calculated by using the least square method.The results show that the concentration meter can provide timely and accurate measurement,with a maximum error of 0.328 percentage points and a root mean square error of 0.194 percentage points,presenting effective improvement in accuracy.
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