论文部分内容阅读
在转子弯曲量监测系统中，为防止由电涡流传感器获取的转子弯曲信号零点漂移所引起的对监测结果可靠性和稳定性的损害，根据转子弯曲信号虽是一种缓慢变化的交流电压信号，但信号峰谷对称中心的变化与直流电平的变化规律相似这一特征，充分利用单片微机的软件资源，提出一种以弯曲信号峰谷对称中心线为比较基准实现零漂补偿的新方法及相应的数学模型，并将它用于智能偏心监视仪的研制。分析了算法的原理误差，给出了试验结果
In the rotor bending quantity monitoring system, in order to prevent the reliability and stability damage caused by zero drift of the rotor bending signal obtained by the eddy current sensor, according to the rotor bending signal is a slowly changing AC voltage signal, However, the change of the center of symmetry between signal and valley is similar to the change rule of DC level. This paper makes full use of the software resources of singlechip microcomputer and proposes a new method of zero drift compensation based on the baseline of symmetry of peak and valley of bending signal. The corresponding mathematical model, and it is used for the development of intelligent eccentric monitor. The principle error of the algorithm is analyzed and the test results are given