1.School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China;
2.Science and Technology on Inertial Laboratory, Beijing 100191, China;
3.Key Laboratory of Micro-nano Measurement-Manipulation and Physics, Beijing 100191, China
Abstract：The magnetic field distribution varies with the dislocation of coaxial drive coils. The basic Biot-Savart law and the superposition theorem is applied to work out the calculation formulas of the magnetic field, and with the help of MATLAB the numerical solution of the variation magnetic induction is calculated and the field plots is drawn. Based on these, the effects of the coil winding rules on the magnetic field distribution were judged and reasonable theory suggests is given about the magnetic field incentive and maintenance calculation results show that the effect of dislocation of a double coaxial coil on magnetic field is less than the order of 10-6 that is acceptable to actual application currently.
2013, Vol. 34 
