Two centrosymmetry acoustic paths, which one acoustic path for reference and another acoustic path for measurement are used. S型声表面波质量传感器采用中心对称的双声路结构,一声路作为参考声路;另一声路作为测量声路。
The Degree of Centrosymmetry and The SHG 中心对称度与倍频
It is achieved by calculating the virtual flux from measured voltage at winding terminals and judging from the centrosymmetry of the virtual flux versus differential current curve. 虚拟磁通只需要根据绕组端电压测量值就可以容易计算。