Study on Error Analysis and Correction of the Monitoring System of Hydraulic Settlement Device
By analyzing the physical factors that affect the monitoring accuracy of hydraulic settlement devices,the impact degree of different factors on monitoring accuracy are obtained.Among them,the atmospheric pressure error,temperature error and noise error are the main factors causing the monitoring error.Therefore,error correction mea-sures are proposed for each kind of error.An independent closed isobaric system is formed by connecting gas pipes in series and always consistent with air pressure above the liquid surface of each settlement device to eliminate pres-sure errors;The temperature error can be ignored by expanding the radius ratio between cross-section of the con-stant level box and the liquid pipe and the temperature coefficients;That setting shielding layer for the pressure sen-sors,signal converting device and the transmission line eliminate the noise interference.The adaptability of the hy-draulic settlement device monitoring system to environment are improved by these measures so that it meets the pre-cision requirements of engineering monitoring and is conducive to the promotion of automated settlement monitoring.It has reference for data analysis and production of the same settlement device.