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基于STM32的建筑物接地電阻檢測儀的研制
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中國計量學(xué)院機電工程學(xué)院,中國計量學(xué)院機電工程學(xué)院,喀什師范學(xué)院物理系,中國計量學(xué)院機電工程學(xué)院

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TP237

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質(zhì)檢總局科技計劃項目


Development of building ground resistance measuring instrument based on STM32
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College of Mechanical and Electrical Engineering,China Jiliang University,Hangzhou,Zhejiang ,China Department of physics,Kashi Normal University,KaShi,XinJiang ,China,,,College of Mechanical and Electrical Engineering,China Jiliang University,Hangzhou,Zhejiang ,China Department of physics,Kashi Normal University,KaShi,XinJiang ,China

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    摘要:

    針對目前建筑物接地電阻檢測裝置存在的缺陷,提出一種基于STM32的建筑物接地電阻檢測的系統方案。該方案根據三極補償原理,采用嵌入式系統控制的主從機軟硬件實(shí)現接地電阻的精確測量。檢測系統包括交流合成、信號采集和數據處理三部分。檢測系統由STM32控制產(chǎn)生頻率精度高、波形穩定的交流電流注入接地網(wǎng),對地網(wǎng)中的電壓電流信號經(jīng)帶通濾波、差分放大、同步AD轉換、FFT處理得到精確地接地電阻值。本檢測系統能夠提高檢測精度以及檢測效率,實(shí)現檢測工作的智能化。

    Abstract:

    According to the defect of the building ground resistance measuring device presently. A new system of building ground resistance detection which based on STM32 was proposed. This scheme was based on the principle of three-pole compensation method. The hardware and software of the master-slave machine which controlled by embedded system was applied to achieve accurate measurement of ground resistance. The detection system included synthesizer of alternating current, signal collecting and data processing platform. The detection system was consisted of a STM32 control which product alternating current with high precision frequency and waveform stability into the grounding network. The signal of voltage and current in the grounding grid were translated into a precise grounding resistance value through band-pass filter, differential amplify, synchronous AD conversion, FFT processing. The detection system could improve the detection accuracy and efficiency, and realize the intelligent testing work.

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盧超,陳志強,彭慧,趙子愷.基于STM32的建筑物接地電阻檢測儀的研制計算機測量與控制[J].,2015,23(10):94.

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  • 收稿日期:2015-04-11
  • 最后修改日期:2015-05-16
  • 錄用日期:2015-05-18
  • 在線(xiàn)發(fā)布日期: 2015-10-28
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