基于DSP的集成光栅细分数显装置的研制  

Research on Integrated Grating Subdividing Digital Display Device Based on DSP

作　　者：刘娇[1] 庄志涛[1] 刘宛予[1] 

机构地区：[1]哈尔滨工业大学自动化测试与控制系,黑龙江哈尔滨150001

出　　处：《光电技术应用》2008年第4期39-42,共4页Electro-Optic Technology Application

基　　金：黑龙江省科技攻关项目(GB06A510);哈尔滨市归国留学人员基金项目(2005AFLXJ011)

摘　　要：设计了一种新的硬件系统,采用光栅位移传感器结合DSP器件实现了位移测量的数字化;传感器输出信号先采用电阻链分相细分,然后通过TMS320LF2407A内部脉冲编码电路(QEP)完成辨向和二次细分,达到了高精度位移测量的目的.测试实验证明该方法集成度高,实时性好,测量精度高.A new hardware system is designed. The digital displacement measurement is implemented by using optical grating displacement sensor and DSP. The signal is divided by phase-shifting resister chain, and then it is direction-discriminated and further divided by using internal QEP circuit of TMS320LF2407A, in order to ob- tain the high precision of displacement measurement. The experimental results show that the method has high integration, good real time and high precision

关 键 词：光栅位移传感器 细分 脉冲编码电路 

分 类 号：TP21[自动化与计算机技术—检测技术与自动化装置]