A focused sound field measurement system by LabVIEW.
- Author:
Zhan JIANG
;
Jingfeng BAI
;
Ying YU
- Publication Type:Journal Article
- MeSH:
Computer Simulation;
Numerical Analysis, Computer-Assisted;
Software;
Sound
- From:
Chinese Journal of Medical Instrumentation
2014;38(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 automatically 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%.
