Automatized system for 3D sound intensity field measurement

被引：7

作者：

Mickiewicz, Witold ^{[1
]}

Jablonski, Michal ^{[1
]}

Pyla, Michal ^{[2
]}

机构：

[1] West Pomeranian Univ Technol, Fac Elect Engn, Szczecin, Poland

[2] West Pomeranian Univ Technol, Fac Maritime Technol & Transport, Szczecin, Poland

来源：

2011 16TH INTERNATIONAL CONFERENCE ON METHODS AND MODELS IN AUTOMATION AND ROBOTICS | 2011年

关键词：

D O I：

10.1109/MMAR.2011.6031344

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In the paper a portable automatized system for measurements of vectorial effects in a sound intensity field is presented. The system enables the realization of the point-by-point measurements of the sound intensity field and consists of 3 main blocks realised in LabVIEW environment: positioning system control, multichannel data acquisition and signal processing. This hardware-software solution allows the determination of the spatial vector distribution of sound intensity. To estimate sound intensity vector at each measurement point in space, sound pressure scalar and three componenent (x, y, z) of sound particle velocity (3D) vector must be measured. It is done using the condenser microphone coupled with 3D Microflown hot wire anemometry USP type sensor. The system controls positioning of the measuring probe in sequential points, acquires 4 data channels (pressure and 3 velocity components) and processes the data to obtain the sound intensity values in each measuring points. All the computation needed is done in real-time.

引用

页码：200 / 203

页数：4