基于 FPGA 的 LCＲ 测量仪的设计与实现

doi:10.14139/j.cnki.cn22-1228.2023.04.013

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摘要

将电阻、电容、电感通过与频率之间的对应关系转化为频率，由 FPGA 进行处理和运算，最终在显示屏上进行数值的输出。电阻和电容的波形采用 NE555 定时器构成的多谐振荡电路产生，电感的波形由电容三点式振荡电路产生，采用 Digilent Basys 3 开发板捕获频率，利用等精度测量法处理，通过运算得出结果，从而实现各个未知元件的测量与显示。

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	吴润强
	项璟晨
	郝鸣
	雷植凯
	刘文杰
	孙科学

关键词: 频率测量多谐振荡电路电容三点式振荡电路等精度测量法 FPGA

Abstract:

The principle is to convert resistance，capacitance and inductance into frequency through the corresponding relationship with frequency，which is processed and calculated by Field Programmable Gate Array，and finally output the value on the display screen． The waveform of resistance and capacitance is generated by the multi harmonic oscillation circuit composed of NE555 timer，and the waveform of inductance is generated by the three-point oscillation circuit of capacitance．The frequency is captured by the Digilent Basys 3 development board，processed by the equal precision measurement method，and the results are obtained through calculation，thus realizing the measurement and display of each unknown component．

Key words: frequency measurement multivibrator oscillation circuit capacitor three-point oscillator circuit equal precision measurement method FPGA

发布日期: 2023-08-25

ZTFLH:

TM 932

引用本文:

吴润强 , 项璟晨, 郝鸣 , 雷植凯 , 刘文杰 , 孙科学. 基于 FPGA 的 LCＲ测量仪的设计与实现 [J]. 大学物理实验, 2023, 36(4): 62-68.
WU Ｒunqiang , XIANG Jingchen , HAO Ming , LEI Zhikai , LIU Wenjie, SUN Kexue . Design and Implementation of LCＲ Measuring Instrument Based on FPGA . Physical Experiment of College, 2023, 36(4): 62-68.

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http://dawushiyan.jlict.edu.cn/CN/10.14139/j.cnki.cn22-1228.2023.04.013 或 http://dawushiyan.jlict.edu.cn/CN/Y2023/V36/I4/62

[1]	. [J]. Physical Experiment of College, 2020, 33(1): 0 .
[2]	. [J]. Physical Experiment of College, 2020, 33(1): 0 .
[3]	WU Ming, ZENG Hong, ZHANG Wenpeng, ZHANG Yuanwei, DAI Zhenbing. Theoretical and Experimental Research of A zimuthal-Radial Pendulum [J]. Physical Experiment of College, 2020, 33(1): 1 -6 .
[4]	LIU Weiwei, SUN Qing, LIU Chenglin. Research on Selection of Critical Magnetization Current for Measuring Charge-Mass Ratio of Electron by Magnetron Controlling [J]. Physical Experiment of College, 2020, 33(1): 7 -9 .
[5]	DENG Li, LIU Yang, ZHANG Hangzhong, ZHOU Kewei, ZHAO guoru, WEI luanyi. MATLAB simulation of Fourier transform of Gaussian beam and the spatial filtering effects basing on 4F optical imaging system [J]. Physical Experiment of College, 2020, 33(1): 10 -16 .
[6]	MA Kun. Experiment Study on the Measuring Young' s Modulus by Stretching [J]. Physical Experiment of College, 2020, 33(1): 17 -20 .
[7]	FEI Xianxiang, CHEN Chunlei, WANG Wenhua, SHI Wenqing, HUANG Cunyou. Design of Lens Group Focal Length Measurement System Based on Object-Image Parallax Comparison [J]. Physical Experiment of College, 2020, 33(1): 21 -24 .
[8]	LI Chunjiang, LI Luyu, YANG Jinglei, LI Tingrong, XIANG Wenli. A New Method for Simple and Rapid Measurement of Refractive Index [J]. Physical Experiment of College, 2020, 33(1): 25 -28 .
[9]	WANG Cuiping, YAO Mengyu, YE Liu, LI Aixia, ZHANG Ziyun, DAI Peng. Progress and Applications of Electron Spin Resonance in Biology [J]. Physical Experiment of College, 2020, 33(1): 29 -33 .
[10]	CHEN Yingmo, SHEN Siyi, WANG Jie. Study on the Characteristics of Silicon Photocells [J]. Physical Experiment of College, 2020, 33(1): 34 -36 .