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基于stm32的手持式氣體檢測儀
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中北大學(xué)

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TP216???????

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Handheld gas detector based on stm32
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    摘要:

    在日常生活及工作中,為了對有害氣體進(jìn)行有效的實(shí)時(shí)監測,避免長(cháng)期處于有害氣體的環(huán)境中從而對人員健康產(chǎn)生危害,針對目前國產(chǎn)氣體檢測儀最小檢測濃度過(guò)高、響應時(shí)間過(guò)長(cháng)、檢測誤差較大的問(wèn)題設計了一種基于STM32的手持式氣體檢測儀;主要從內部硬件設計以及軟件設計兩個(gè)方面完成了手持式氣體檢測儀的設計,硬件方面的主控芯片選擇STM32F103芯片,軟件方面基于嵌入式系統開(kāi)發(fā)實(shí)現對于VOC氣體、溫度、大氣壓力的測量、顯示、數據存儲以及數據分析,主要利用C語(yǔ)言來(lái)實(shí)現其功能;通過(guò)對整個(gè)檢測儀系統的調試,證明這一系統能夠對100ppb以下氣體濃度進(jìn)行響應、響應時(shí)間能夠小于20s、檢測誤差能夠小于5%FS;本氣體檢測儀除了普通環(huán)境的氣體濃度監測,還能應用在有氣體泄漏或空氣質(zhì)量要求的化學(xué)、工業(yè)、農業(yè)、動(dòng)植物培育等場(chǎng)景。

    Abstract:

    In daily life and work, in order to effectively monitor the harmful gas in real time and avoid being in the environment of harmful gas for a long time, which is harmful to people's health, aiming at the problems of too high minimum detection concentration, too long response time and large detection error of domestic gas detector, a handheld gas detector based on STM32 is designed; The design of handheld gas detector is mainly completed from two aspects: internal hardware design and software design. STM32F103 chip is selected as the main control chip in hardware. In software, the measurement, display, data storage and data analysis of VOC gas, temperature and atmospheric pressure are developed based on embedded system, and its functions are mainly realized by C language; Through the debugging of the whole detector system, it is proved that the system can respond to the gas concentration below 100ppb, the response time can be less than 20s, and the detection error can be less than 5% FS; In addition to the gas concentration monitoring of ordinary environment, the gas detector can also be used in chemical, industrial, agricultural, animal and plant cultivation and other scenes with gas leakage or air quality requirements.

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郭小燁,王洋.基于stm32的手持式氣體檢測儀計算機測量與控制[J].,2022,30(9):265-271.

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歷史
  • 收稿日期:2022-03-31
  • 最后修改日期:2022-04-21
  • 錄用日期:2022-04-21
  • 在線(xiàn)發(fā)布日期: 2022-09-16
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