| 基于STM32F4的时栅位移传感器信号处理系统集成化设计 |
| |
| 引用本文： | 杨继森,许强,冯济琴.基于STM32F4的时栅位移传感器信号处理系统集成化设计[J].传感器与微系统,2013(12):113-116. |
| |
| 作者姓名： | 杨继森 许强 冯济琴 |
| |
| 作者单位： | 重庆理工大学机械检测技术与装备教育部工程研究中心,时栅传感及先进检测技术重庆市重点实验室,重庆400054 |
| |
| 基金项目： | 基金项目：国家自然科学基金资助项目（51205434）;重庆市教委科学技术研究项目（KJ120808） |
| |
| 摘 要： | 设计了一种基于单片STM32F4芯片的时栅位移传感器信号处理系统，将驱动电源、信号采样以及数据处理与误差补偿集成在一片芯片中完成，采用数字频率直接合成（DDS）技术进行激励源的设计，利用输入捕获方式进行高频时钟脉冲插补来采集测量信号，由芯片集成的单周期DSP指令部件完成数据计算，并采用傅氏级数谐波修正技术来进行误差修正。实验表明：采用该系统后，72对极时栅误差峰峰值为3．29”，在保证精度的同时实现了时栅信号处理系统的集成化、小型化，降低了生产成本。
|
| 关 键 词： | 信号处理 STM32F4 时栅 角位移 传感器 |
Design of integration of signal processing system of time grating displacement sensor based on STM32F4 |
| |
| YANG Ji-sen,XU Qiang,FENG Ji-qin.Design of integration of signal processing system of time grating displacement sensor based on STM32F4[J].Transducer and Microsystem Technology,2013(12):113-116. |
| |
| Authors: | YANG Ji-sen XU Qiang FENG Ji-qin |
| |
| Affiliation: | ( Engineering Research Center of Mechanical Testing Technology and Equipment, Ministry of Education, Chongqing Key Laboratory of Time-Grating Sensing and Advanced Testing Technology, Chongqing University of Technology, Chongqing 400054, China) |
| |
| Abstract: | A signal processing system of time grating displacement sensor based on MCU STM32F4 is designed. It integrates the signal acquisition and data processing, drive power and error compensation on one chip, and develops design of driving source with DDS. By the means of input capture, for high frequency clock pulse interpolation to collect measurement signals. This system manages to complete data computation in a one-cycle DSP instruction part integrated by chips and error correction with harmonic correction techniques of Fourier series. Experiment indicates that the 72 pairs polar time grating error peak-to-peak value is only 3.29,since this system is adopted, which ensure precision at the same time achieve integration and miniaturization of time-grating signal processing system and reduce the cost. |
| |
| Keywords: | signal processing STM32F4 time grating angular displacement sensor |
| 本文献已被 维普 等数据库收录！ |
