| 基于DSP的集成光栅细分数显装置的研制 |
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| 引用本文： | 刘娇,庄志涛,刘宛予.基于DSP的集成光栅细分数显装置的研制[J].光电技术应用,2008,23(4):39-42. |
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| 作者姓名： | 刘娇 庄志涛 刘宛予 |
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| 作者单位： | 哈尔滨工业大学自动化测试与控制系,黑龙江,哈尔滨,150001 |
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| 基金项目： | 黑龙江省科技攻关项目，黑龙江省哈尔滨市留学回国人员科研启动基金 |
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| 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．
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| 关 键 词： | 光栅位移传感器 细分 脉冲编码电路 |
Research on Integrated Grating Subdividing Digital Display Device Based on DSP |
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| LIU Jiao,ZHUANG Zhi-tao,LIU Wan-yu.Research on Integrated Grating Subdividing Digital Display Device Based on DSP[J].Electro-Optic Technology Application,2008,23(4):39-42. |
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| Authors: | LIU Jiao ZHUANG Zhi-tao LIU Wan-yu |
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| Affiliation: | LIU Jiao, ZHUANG Zhi-tao, LIU Wan-yu (Department of Automatic Testing and Control, H. I. T, Harbin 150001, China) |
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| Abstract: | 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 |
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| Keywords: | optical grating displacement sensor subdivision QEP |
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