本文重点介绍了气电液式EPC 系统中气动传感器的结构设计, 并在理论上作了适当分析。这种新型气动传感器具有结构简单、使用可靠的特点。经实际使用, 系统工作良好, 获得了较好的纠偏效果。 关键词: EPC 系统; 气动传感器; 结构设计 Abstract : In this paper , the structure design of pneumatic detector used in EPC system is stressed1The new pneumatic detector is applied in pneumatic - electric - hydraulic EPC system11The experiment shows that the system works well and reliably1 Keywords : Edge position control system; Pneumatic detector ; Structure design