Study of Controlling of an Electromagnet and Permanent Magnet Suspension Isolation System

Precise instruments and devices used on aircrafts should follow low frequency motion as aircraft taking off and on normal fying; on the other hand, they should also isolate the high frequency motion caused by spurting fuel, etc. This paper studied a novel isolating method-electromagnet and permanent magnet suspension isolation. After establishing the physical and mathematicn models concerning horizontal and vertical translation freedom degree, the paper proposed a pole-placing method to design the control system. By computer simulation, it is indicated that the control system could meet the task well.