A Focused Sound Field Measurement System by LabVIEW
10.3969/j.issn.1671-7104.2014.03.006
- VernacularTitle:应用LabVIEW的聚焦声场测量系统
- Author:
Zhan JIANG
1
;
Jingfeng BAI
;
Ying YU
Author Information
1. 上海交通大学生物医学工程学院生物医学仪器研究所
- Keywords:
sound field measurement;
system software;
LabVIEW
- From:
Chinese Journal of Medical Instrumentation
2014;(3):181-185
- CountryChina
- Language:Chinese
-
Abstract:
In this paper, according to the requirement of the focused sound field measurement, a focused sound field measurement system was established based on the LabVIEW virtual instrument platform. The system can automatical y search the focus position of the sound field, and adjust the scanning path according to the size of the focal region. Three-dimensional sound field scanning time reduced from 888 hours in uniform step to 9.25 hours in variable step. The efficiency of the focused sound field measurement was improved. There is a certain deviation between measurement results and theoretical calculation results. Focal plane-6 dB width difference rate was 3.691%, the beam axis-6 dB length differences rate was 12.937%.
