抄録
A novel automatic and multifunctional system for measuring and analyzing magnetic deflection field has been developed. It can measure the field parameters and the magnetic potential based on newly-invented"Double Coil Regression Method"precisely. According to these measured data, all kinds of the third and fifth deflection aberration coefficients as well as spatial field distribution and electron trajectories can be obtained. This instrument is very useful in designing and testing a conventional DY especially for a high definition deflection yoke.
