Measurement and Calculation of Mutual Inductance of Parallel Coaxial Circular Coil
Using Neumann formula and numerical integration software,the mutual inductance of two paral-lel coaxial rectangular section circular coils is calculated,and the mutual inductance is measured by induc-tance instrument,volt-ampere method and electromagnetic induction method respectively.The relative error between the experimental measured value and the theoretical calculated value is less than 5%.The experi-mental and theoretical calculations verify each other,and the variation curves of mutual inductance coefficient and coupling coefficient with the distance between the two coils are obtained,which provides a theoretical reference for the design of mutual inductance coils.
mutual inductancecoupling coefficientcoaxial circular coilNeumann formula