We will report principle and method measuring magnetic moment, magnetization and susceptibility of weak magnetic substance applied electromagneticinductionmethod between 4.2K-323K in this paper.
According to Faraday's Law of ElectromagneticInduction, using the reference direction of circuit variation, it can find a method of V-A Equation made by mutual inductive circle at its option.
In modeling the electromagneticinduction, based on the principle of domain decomposition, a fast and effective numerical computational method is developed to deal with the volume integral equation.