|本期目录/Table of Contents|

[1]侯志伟,杜青青,包理群.基于电容式传感器的纸张数测量系统研究与设计[J].工业仪表与自动化装置,2022,(04):45-49.[doi:10.19950/j.cnki.cn61-1121/th.2022.04.009]
 HOU Zhiwei,DU Qingqing,BAO Liqun.Research and design of paper quantity measurement system based on capacitive sensor[J].Industrial Instrumentation & Automation,2022,(04):45-49.[doi:10.19950/j.cnki.cn61-1121/th.2022.04.009]
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基于电容式传感器的纸张数测量系统研究与设计

《工业仪表与自动化装置》[ISSN:1000-0682/CN:61-1121/TH]

卷:
期数:
2022年04期
页码:
45-49
栏目:
出版日期:
2022-08-15

文章信息/Info

Title:
Research and design of paper quantity measurement system based on capacitive sensor
文章编号:
1000-0682(2022)04-0000-00
作者:
侯志伟1 杜青青1 包理群2
1.兰州石化职业技术大学 电子电气工程学院,甘肃 兰州 730060;
2.兰州工业学院 电子信息工程学院,甘肃 兰州 730050
Author(s):
HOU Zhiwei1 DU Qingqing1 BAO Liqun2
1.College of Electronic and Electrical Engineering, Lanzhou Petrochemical University of Vocational Technology, Gansu Lanzhou 730060;
2.College of Electronics and Information Engineering, Lanzhou institute of technology, Gansu Lanzhou 730050, China
关键词:
纸张数微位移电容式传感器DDS模块STM32处理器ADC采样
Keywords:
paper quantity micro-displacement capacitive sensor DDS module STM32 processor ADC sampling
分类号:
TP271 TP212
DOI:
10.19950/j.cnki.cn61-1121/th.2022.04.009
文献标志码:
A
摘要:
针对两平行极板间距微位移的方法来测量纸张数的实际问题,该文提出了一种基于变极距型电容式传感器的测量系统。采用两块50 mm×50 mm单面覆铜板作为电容传感器探头,DDS模块产生的正弦激励信号经过两级集成运放放大和乙类推挽功率放大后加载至积分运放电路,进一步通过调理电路将输出的信号由STM32处理器片内ADC采样量化和数字滤波后计算出幅度值,根据标定不同纸张数的幅度值进行数据处理分析,从而得出待测纸张数量。实验结果表明,该纸张数测量系统综合准确率为99.6%,能够有效、准确地实现测量纸张数的实际工程应用需求。
Abstract:
In view of the practical problem of measuring the quantity of sheets by the method of micro-displacement of the distance between the two parallel polar plates, this paper proposes a measuring system based on the variable polar distance capacitive sensor. Two 50mmX50mm single-sided copper clad laminates are used as capacitive sensor probes. Load the sinusoidal excitation signal to the integrating circuit, generated by the DDS module, and amplified by two-stage integrated operational amplifier and class B push-pull power. The output signal is further converted by the conditioning circuit, calculated the amplitude value through the amplitude value of the calibrated different quantity of sheets, after on-chip ADC of STM32 processor sampling quantization and digital filtering, thus obtain the quantity of sheets to be measured. The experimental results show that the comprehensive accuracy rate of the paper quantity has reached to 99.6% using the measurement system, it can effectively and accurately meet the actual engineering application requirements of measuring paper quantity.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2022-03-02
基金项目:
甘肃省自然科学基金(20JR5RA377);
甘肃省高等学校创新基金项目(2021A-224);
甘肃省高等学校创新基金项目(2021B-392)
作者简介:侯志伟(1987),男,硕士,讲师,主要研究方向为数字信号处理及计算机应用技术。
更新日期/Last Update: 1900-01-01