In this new test theory, by introducing parameter M, a mathematic model was established based on the Ohm law and the cylinder form conductor magnetic field permeability formula.

通过引用通用函数M，根据欧姆定理和圆柱形导体的磁场渗透公式建立了数学模型，并设计了相应的绝对式涡流传感器及其检测方法。