计量学报1998，Vol.19Issue(2)：105-110,6.
线列阵在密闭管中的自由场校准
Free-field Acoustic Calibration of Line Array in a Closed Chamber
赵涵 1袁文俊 1葛辉良1
作者信息
- 1. 杭州应用声学研究所,浙江,富阳,311400
- 折叠
摘要
Abstract
It would be very difficult to calibrate towed-line array using the general free-field calibration technique due to its long length and low working frequency. In this paper a closed-chamber technique for measuring the complex free-field sensitivity and directivity patterns of line array is described. A prototype calibration system has been developed. The system can operate over the frequency range from 20 to 600 Hz. The measurement results obtained in the chamber have shown in a good agreement with the theoretical predicted curves. Obviously, the technique is a very efficient method to calibrate line array in low frequency.关键词
校准/线列阵/管Key words
Calibration/Line array/Chamber分类
通用工业技术引用本文复制引用
赵涵,袁文俊,葛辉良..线列阵在密闭管中的自由场校准[J].计量学报,1998,19(2):105-110,6.
