Design of drive circuit for wireless endoscope capsule / 医疗卫生装备

Medical endoscope capsule is described from its construction principle and drive system.The scheme and function of the drive system,especially the driving velocity and the direction control for that based on FPGA,are introduced in detail.Experiments indicate that the micro-drive system,with a linear speed ranging from 0 to 10 mm/s,can move forward and backward,and turn left and right discretionarily.The availability of programmable logic device makes the system reliable and flexible.