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赫姆霍兹共振原理揭示了带孔密闭空腔的容积与其共振频率的关系,介绍了该原理在空腔容积测量中的应用发展,设计了空腔容积测量仪器,在恒温条件下将压缩空气吹入腔体激起腔体共振,探究了利用压缩空气引发共振时气压与共振频率的关系,分析了赫姆霍兹共振原理在测量体积中的可行性,对理论与实际共振频率作了修正,实现了该原理在空腔容积中的高精度测量和对变化空腔容积的动态测量。
The principle of Helmholtz resonance reveals the relationship between the volume of a closed cavity with its resonance frequency, introduces the application and development of this principle in the measurement of cavity volume, designs a cavity volume measuring instrument, and puts compressed air The relationship between air pressure and resonance frequency when using compressed air to initiate resonance was investigated. The feasibility of the Helmholtz resonance principle in measuring volume was analyzed, and the theoretical and practical resonance frequencies were corrected , The high-accuracy measurement of the principle in the cavity volume and the dynamic measurement of the changing cavity volume are realized.