仪表技术与传感器
儀錶技術與傳感器
의표기술여전감기
INSTRUMENT TECHNIQUE AND SENSOR
2014年
12期
99-101,123
,共4页
电场式%时栅%信号处理%FPGA
電場式%時柵%信號處理%FPGA
전장식%시책%신호처리%FPGA
electrical field%time grating%signal processing%FPGA
设计了电场式时栅位移传感器信号处理电路的硬件平台,阐述了整个硬件平台的设计与研制过程。该平台以SOPC技术为基础,在单片FPGA上实现整个硬件平台系统的构建,将信号的采集、处理和传输集成在单片FPGA上,电路简单、稳定性好。将该信号处理电路用于电场式直线位移传感器实验系统,在数据未经修正的情况下,在200 mm测量范围内传感器的误差峰峰值为0.8μm,表明该信号处理电路实现了对电场式时栅40 kHz的信号的高性能处理,从而实现了电场式时栅位移传感器的高精度、实时测量。
設計瞭電場式時柵位移傳感器信號處理電路的硬件平檯,闡述瞭整箇硬件平檯的設計與研製過程。該平檯以SOPC技術為基礎,在單片FPGA上實現整箇硬件平檯繫統的構建,將信號的採集、處理和傳輸集成在單片FPGA上,電路簡單、穩定性好。將該信號處理電路用于電場式直線位移傳感器實驗繫統,在數據未經脩正的情況下,在200 mm測量範圍內傳感器的誤差峰峰值為0.8μm,錶明該信號處理電路實現瞭對電場式時柵40 kHz的信號的高性能處理,從而實現瞭電場式時柵位移傳感器的高精度、實時測量。
설계료전장식시책위이전감기신호처리전로적경건평태,천술료정개경건평태적설계여연제과정。해평태이SOPC기술위기출,재단편FPGA상실현정개경건평태계통적구건,장신호적채집、처리화전수집성재단편FPGA상,전로간단、은정성호。장해신호처리전로용우전장식직선위이전감기실험계통,재수거미경수정적정황하,재200 mm측량범위내전감기적오차봉봉치위0.8μm,표명해신호처리전로실현료대전장식시책40 kHz적신호적고성능처리,종이실현료전장식시책위이전감기적고정도、실시측량。
A hardware platform design of the signal processing circuit for electrical field time grating sensors was proposed,and the design principles were introduced.This platform is based on the SOPC technology,and the single FPGA chip integrates the sig-nal acquisition function,signal processing function and signal transmission function.This hardware platform is applied to the linear displacement measurement experiment of the electrical field sensor.As a result,the original peak-peak error is 0.8μm without any correction in 200 mm measurement range,which proves the high performance of proposed signal processing circuit for the electrical field time grating sensor with the 40 kHz exciting signal.The experiment results show that the high precision and real time measure-ment is realized with the electrical field time grating sensor.