电磁耦合式位移传感器的直接数字解调电路设计  

Design of direct digital demodulation circuit for electromagnetic coupling displacement sensor

作　　者：杨睿[1] 程雪[1] 

机构地区：[1]西北工业大学,陕西西安710129

出　　处：《现代电子技术》2014年第15期98-100,104,共4页Modern Electronics Technique

摘　　要：针对电磁耦合式位移传感器轴角位置的测量,采用了由旋转变压器AD2S80A构成的测角系统,介绍了其工作原理、硬件构成及相关参数的选择。研究了系统与DSP的接口设计,并提出了利用锁存器解决在读取AD2S80A时出现的延时问题,从而提高了伺服控制系统的实时性。An angle measuring system based on resolver AD2S80A was used for measurement of shaft angle position of elec-tromagnetic coupling displacement sensor. The system working principles,hardware composition and correlative parameter are in-troduced. The design of interface between the system and DSP is researched. The latch is used to eliminate the time delay occur-ing when DSP reads AD2S80A data. Therefore,the real-time performance of the servo control system was improved.

关 键 词：AD2S80A 旋转变压器 轴角 数字转换芯片 DSP接口 

分 类 号：TN911.73[电子电信—通信与信息系统] TP383.2[电子电信—信息与通信工程]