基于力敏传感器的液体浓度测量及装置设计

doi:10.14139/j.cnki.cn22-1228.2025.05.010

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摘要基于高精度的力敏传感器和 STM32 主控芯片，通过建立溶液“浓度－密度－浮力”的对应关系，利用力敏传感器对浮力的变化进行精确测量，设计了一种液体浓度测量装置。装置设计完成后，使用该装置分别对氯化钠溶液、碳酸钠溶液、硫酸铜溶液、乙醇溶液进行了浓度测量，测量结果与实际浓度的偏差普遍在 0．3%以下，表明该装置具有较高的测量精度。

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	孔德明
	丁瑞雪
	薛正扬
	刘雁群
	徐富新
	何彪

关键词: 力敏传感器浓度检测 STM32 单片机

Abstract: Based on high-precision force-sensitive sensors and STM32 microcontrollers，this study established a corresponding relationship between " the concentration，density，and buoyancy" of solutions．The changes in buoyancy were accurately measured by using force-sensitive sensors，and a liquid concentration measurement device was developed．After completing the design of the device，it was used to measure the concentration of sodium chloride，sodium carbonate，copper sulfate，and alcohol solutions，and the measurement results showed a deviation from the actual concentration of generally less than 0．3%，indicating a high measurement accuracy of the device．

Key words: force sensor concentration detection STM32 single chip microcomputer

出版日期: 2025-10-25 发布日期: 2025-10-25 整期出版日期: 2025-10-25

ZTFLH:	O 312
	TH 17

基金资助: 教指委教改项目(DJZW202031zn);湖南省教改项目(HNJG-2021-0325)

引用本文:

孔德明, 丁瑞雪, 薛正扬, 刘雁群, 徐富新, 何彪 . 基于力敏传感器的液体浓度测量及装置设计[J]. 大学物理实验, 2025, 38(5): 52-58.
KONG Deming, DING Ｒuixue, XUE Zhengyang, LIU Yanqun, XU Fuxin, HE Biao . Design of Liquid Concentration Measuring Device Based on Force Sensor. Physical Experiment of College, 2025, 38(5): 52-58.

链接本文:

https://dawushiyan.jlict.edu.cn/CN/10.14139/j.cnki.cn22-1228.2025.05.010 或 https://dawushiyan.jlict.edu.cn/CN/Y2025/V38/I5/52

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