基于安培力与驻波法的弦振动实验装置设计与应用

doi:10．14139/j．cnki．cn22-1228．2026．02．016

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摘要为解决传统装置精度低、稳定性差、操作复杂的问题，本研究设计了一款基于安培力驱动与驻波法的新型弦振动实验装置。该装置以电磁驱动替代机械振源，集成高精度拉力传感器与自动化数据采集系统，实现了张力连续调节、宽范围频率控制及作用力精准定位。实验验证了弦振动频率与张力平方根、弦长倒数、线密度平方根倒数的定量关系:低频段基频与波速偏差普遍小于 1%;结合声压级突增判据与频谱分析技术，高频段共振识别误差可控制在 2%以内。该装置搭载便捷交互界面，适用于大学物理实验教学，可为工程振动分析提供可拓展平台。

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	王雅萍
	尹渝中
	刘子昂
	丁志鹏

关键词: 弦振动实验安培力驻波法集成化实验装置大学物理实验教学

Abstract: To solve the low precision，poor stability and complex operation of traditional setups，this study
designs a novel string vibration device based on Ampere force drive and the standing wave method．By replacing
mechanical vibration sources with electromagnetic drive and integrating high-precision tension sensors and
automatic data acquisition systems，the device realizes continuous tension adjustment，wide-range frequency
control and accurate force-positioning．Experiments verify the quantitative relationships between string vibration
frequency and tension square root，string length reciprocal as well as linear density reciprocal square root，with
low-frequency fundamental frequency and wave velocity errors generally ＜1% and high-frequency resonance
recognition errors controlled within 2% via SPL burst criteria and spectrum analysis． With a user-friendly
interactive interface，the device is suitable for university physics teaching and provides an extensible platform
for engineering vibration analysis．

Key words: string vibration experiment ampere;standing wave method integrated experimental device teaching of physics experiments in universities

发布日期: 2026-04-25

ZTFLH:

O 4-33

引用本文:

王雅萍, 尹渝中, 刘子昂, 丁志鹏 . 基于安培力与驻波法的弦振动实验装置设计与应用[J]. 大学物理实验, 2026, 39(2): 88-94.
WANG Yaping , YIN Yuzhong , LIU Ziang , DING Zhipeng . Design and Application of String Vibration Experimental Device Based on Ampere Force and Standing Wave Method#br#. Physical Experiment of College, 2026, 39(2): 88-94.

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https://dawushiyan.jlict.edu.cn/CN/10．14139/j．cnki．cn22-1228．2026．02．016 或 https://dawushiyan.jlict.edu.cn/CN/Y2026/V39/I2/88

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