传感技术学报
傳感技術學報
전감기술학보
Journal of Transduction Technology
2014年
12期
1654-1658
,共5页
冉扬洁%江中伟%杨继森%李宏伟
冉颺潔%江中偉%楊繼森%李宏偉
염양길%강중위%양계삼%리굉위
时栅位移传感器%信号处理%TDC-GP2%AD9958
時柵位移傳感器%信號處理%TDC-GP2%AD9958
시책위이전감기%신호처리%TDC-GP2%AD9958
time grating displacement sensor%signal processing%TDC-GP2%AD9958
随着时栅位移传感器的产业化发展,高速测量需求的趋势日益凸显,提出了一种基于TDC-GP2的时栅位移传感器信号处理系统。该系统采用STM32F4和AD9958产生时栅位移传感器所需的高稳定、高精度励磁信号,采用高分辨率TDC-GP2数字时钟转换器来测量传感器动、定测头的感应信号相位时间差,将测量结果送入微处理器中处理,以此到达以时间测量空间的目的。经实验表明:48对极时栅传感器整周(0~360°)的误差达到±2.3″,该方案优化了电路结构,提高了时栅位移传感器的测量精度。
隨著時柵位移傳感器的產業化髮展,高速測量需求的趨勢日益凸顯,提齣瞭一種基于TDC-GP2的時柵位移傳感器信號處理繫統。該繫統採用STM32F4和AD9958產生時柵位移傳感器所需的高穩定、高精度勵磁信號,採用高分辨率TDC-GP2數字時鐘轉換器來測量傳感器動、定測頭的感應信號相位時間差,將測量結果送入微處理器中處理,以此到達以時間測量空間的目的。經實驗錶明:48對極時柵傳感器整週(0~360°)的誤差達到±2.3″,該方案優化瞭電路結構,提高瞭時柵位移傳感器的測量精度。
수착시책위이전감기적산업화발전,고속측량수구적추세일익철현,제출료일충기우TDC-GP2적시책위이전감기신호처리계통。해계통채용STM32F4화AD9958산생시책위이전감기소수적고은정、고정도려자신호,채용고분변솔TDC-GP2수자시종전환기래측량전감기동、정측두적감응신호상위시간차,장측량결과송입미처리기중처리,이차도체이시간측량공간적목적。경실험표명:48대겁시책전감기정주(0~360°)적오차체도±2.3″,해방안우화료전로결구,제고료시책위이전감기적측량정도。
With the industrial development of the time grating displacement sensor, and its trending in the high-speed measurement has became increasingly prominent, we put forward a time grating displacement sensor signal processing system based on TDC-GP2. The system use STM32F4 and AD9958 to generate high-stability,high-preci-sion excitation signal of time grating displacement sensor,use high-resolution TDC-GP2 digital clock converter to measurement induced signal phase time difference,then we put measurement results into the microprocessor process-ing,in order to reach the purpose that time measurement space. The experiments show that 48 pole time grating displacement sensor whole cycle(0°~360°) error reach ±2.3″,the program optimizes the circuit structure and im-prove the measurement accuracy of time grating displacement sensor.