Abstract
Aiming at the large error in the equal-interval locating method, a precise position calibration method is proposed. The proposed method improves the location measurement accuracy by introducing some feature temperature points to divide the rotary kiln into several segments, then the equal-interval locating method was applied to each segment, ultimately, aposition calibration data more closing to the actual situation was got. The feature temperature points can be selected from the temperature points of kilntyres or the highest temperature point and so on. Taking the practicalapplication into consideration, thebestresultisobtained, when four feature temperature points was introduced to divide the rotary kiln into five segments. The experiment result shows that compared with the equal-interval method, the accuracy of the proposed method has raised about 5.6 times when four feature temperaturepoints is used.
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