Implement of MFM Automatic Control System for CYCIAE-100 Cyclotron

In order to do the magnetic field measurement (MFM) work for 100 MeV H-cyclotron (CYCIAE-100), a set of MFM automatic facility was designed. The MFM facility for CYCIAE-100 adopts the method of circle and radial motion to complete the measurement. In circle direction, control system uses an open loop control at hardware level. A kind of arithmetic is compensated to form a virtual closed loop control based on the position signal by angle encoder feedback. In radius direction, control system uses motion control facility to drive the fixed-up board, which forms a closed loop by the position feedback of raster meter. The design subtly avoids the measurement obstacle arose by hardware factors, improves the measure precise level of magnetic field, and solves the problem of long-term measurement for medium energy cyclotron, which is very important to improve the intensity and quality of beam for CYCIAE-100.