赫姆霍兹共振原理在空腔容积测量中的研究与应用  

The Research and Use of Helmholtz Resonance for Measuring the Volume of Cavity

作　　者：谢鹏[1] 金隼[1] 王大明 林卫 钱吕明 

机构地区：[1]上海交通大学上海市复杂薄板结构数字化制造重点实验室,上海200240 [2]上汽通用五菱汽车股份有限公司,广西柳州545007

出　　处：《机械设计与研究》2016年第2期109-112,122,共5页Machine Design And Research

基　　金："十二五"国家科技支撑计划资助项目(2012BAF06B03)

摘　　要：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 helmholtz resonance theory reveals the relationship between an airtight cavity with a hole or short pipe and the cavity＇s resonant frequency. The development of measuring volume with the Helmholtz resonance theory is introduced. And then designs a new instrument to measure volume by making the cavity resonate with compressed air in the conditions of constant temperature. The relationship between the volume and resonant frequency is also corrected in this theory,thus the high-precision and dynamic measuring has been realized.

关 键 词：赫姆霍兹共振原理 共振频率 容积测量 声学法 动态测量 

分 类 号：TH16[机械工程—机械制造及自动化] U467.4[机械工程—车辆工程]