物理学报2012，Vol.61Issue(22)：339-344,6.
基于机械共振的声谱分析技术
Mechanical resonance based acoustic spectrographic technique
宋潍 1陈宇灏 1李小慧 1张现亮 1王嘉辉 1蔡志岗2
作者信息
- 1. 中山大学,物理科学与工程技术学院,广州510275
- 2. 中山大学,物理科学与工程技术学院,广州510275 中山大学,光电材料与技术国家重点实验室,广州510275
- 折叠
摘要
Abstract
A model for the accurate measurement of low frequency sound spectrum is put forward and a simplified experimental device is built. Based on the principle of mechanical resonance, the natural frequency of the system is controlled, which realizes the function of both measuring frequency spectrum and monitoring noises at low frequency. The device is able to measure the acoustic source at a single frequency below 100 Hz as well as to analyze the spectra of acoustic sources at mixed frequencies, with a relatively high resolution of 1 Hz beyond 40 Hz.关键词
机械共振/声谱分析/声学传感器Key words
mechanical resonance/acoustic spectrum/acoustic sensor分类
数理科学引用本文复制引用
宋潍,陈宇灏,李小慧,张现亮,王嘉辉,蔡志岗..基于机械共振的声谱分析技术[J].物理学报,2012,61(22):339-344,6.
