摘要
由于变耦合系数型时栅对于定子齿和动子齿的依赖性比较大,所以该类型时栅除受激励谐波影响外还要受齿谐波的较大影响,其结果为合成行波的驻波并非呈标准正弦形式变化,而将驻波直接叠加的原始方法会将这种非标准正弦的误差带进行波。文中介绍了一种新的后期信号处理方法,仿真与实际实验表明,新方法不但可以解决上述问题,而且还可以抑制两路驻波中的共模干扰。
Time-grating with variable coupling coefficient can be affected greatly by gear-harmonic in addition to excitation-harmonic because of its quite dependence on stator-and rotator-tooth,and the concomitant is that standing waves which are superposed to a traveling wave do not fluctuate as a sine-form.Primitive method of direct superposition of standing waves leads to non-sine-form error in the traveling wave.This paper proposed a new method and both simulative and experimental results show effectiveness in solving the problem above and restraining the common-mode interference in standing waves.
出处
《仪表技术与传感器》
CSCD
北大核心
2012年第11期31-33,共3页
Instrument Technique and Sensor
基金
国家自然科学基金(50575235
50975304)
关键词
驻波
行波
时栅
共模干扰
standing wave
traveling wave
time-grating
common-mode interference
