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
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)
