基于STM32F4的時(shí)柵位移傳感器信號處理系統設計

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基于STM32F4的時(shí)柵位移傳感器信號處理系統設計
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作者單位:(重慶理工大學(xué) 機械檢測技術(shù)與裝備教育部工程研究中心時(shí)柵傳感及先進(jìn)檢測技術(shù)重慶市重點(diǎn)實(shí)驗室,重慶 400054) 
作者簡(jiǎn)介:周金鋼(1990),男,河北邯鄲人,碩士,主要從事現代傳感技術(shù)方向的研究。[FQ)]
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基金項目:國家自然科學(xué)基金項目(51127001)；國家“863”項目(2012AA041202)；重慶市“兩江學(xué)者”計劃。

Design of Time Grating Displacement Sensor Signal Processing System Based on STM32F4

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(Ministerial 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)

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摘要:

為了提高時(shí)柵位移傳感器的測量精度及分辨率,提出了一種基于STM32F4的時(shí)柵位移傳感器信號處理系統;系統包括硬件電路設計和軟件設計；硬件電路以STM32F4內核處理器芯片和復雜可編程邏輯器件CPLD為核心,集成了信號調理、信號處理等電路模塊；運用高頻時(shí)鐘脈沖插補時(shí)柵位移傳感器感應信號和參考信號之間的相位差,通過(guò)軟件設計控制信號的采集和處理,實(shí)現了相位檢測；經(jīng)實(shí)驗驗證,采用以STM32F4為核心的時(shí)柵信號處理系統后,時(shí)柵位移傳感器的角度誤差峰峰值達到2.4＂,實(shí)現了高精度、高分辨率的時(shí)柵角位移測量。

Abstract:

In order to improve the measuring accuracy and resolution of time grating displacement sensor, we have put forward a time grating displacement sensor signal processing system based on STM32F4. This system includes hardware circuit and software design. The hardware circuit used STM32F4 kernel processor chip and complex programmable logic device CPLD as the core, including the integrated signal conditioning, signal processing circuit module, etc. Through the software design controled time gate signal acquisition and processing. Inserted phase difference between induction signal and reference signal by using the high-frequency pulse of STM32F4 kernel to complete the phase detection. By using this system, the experiments indicated that the peak-to-peak value of time grating position error is only 2.4＂. Realized the high precision and high resolution angular displacement measurement of time grating sensor.

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周金鋼,彭東林,鄭方燕,鄭永,王淑嫻.基于STM32F4的時(shí)柵位移傳感器信號處理系統設計計算機測量與控制[J].,2015,23(1):221-223.

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在線(xiàn)發(fā)布日期: 2015-03-27
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