3、elimitation,itcanalsooutputthecontrolsignaltoadjustthedataacquisitionsystem.Basedonthemassliteraturematerials,thecurriculumdesignsthissystemwhichdividesintotwoparts,hardwareandsoftware.IntheHardware,weuse89c52microcontrollerasthecoreofcontrol,withadataacquisitioncircuit, aDAC0800eight bi