Page 161 - 《应用声学》2020年第1期

第 39 卷 第 1 期 Vol. 39, No. 1
2020 年 1 月 Journal of Applied Acoustics January, 2020

⋄ 研究报告 ⋄

基于黄金分割搜索算法的行波管测量方法

杨 垚 1 李 鋆 2† 何元安 2

(1 哈尔滨工程大学水声工程学院 哈尔滨 150001)
(2 中国船舶工业系统工程研究院 北京 100036)

摘要：为了提供声学材料的测试环境，该文通过有源吸声技术在行波管中建立了一套测量系统，声管中实现了
模拟无限水域的行波场环境，从而对样品的声学参数进行测量。提出了一种利用黄金分割搜索算法对最佳时
延与幅值进行搜索从而完成行波场建立的方法。在上述行波场建立的基础上，利用双水听器法分别对水柱与
钢板样品的声学参数进行了声学测量，透射系数测量值与理论值符合较好。该方法为声学参数的测量方法提
供了有意义的参考。
关键词：行波管；有源吸声；黄金分割搜索算法
中图法分类号: TB564 文献标识码: A 文章编号: 1000-310X(2020)01-0157-06
DOI: 10.11684/j.issn.1000-310X.2020.01.020

Traveling wave tube measurement method based on golden section search
algorithms

YANG Yao 1 LI Jun 2 HE Yuan’an 1

(1 College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China)
(2 CSSC System Engineering Research Institute, Beijing 100036, China)

Abstract: In order to provide a testing environment for acoustic materials, this paper establishes a measuring
system in traveling wave tube by using active sound absorption technology. The traveling wave field environment
as in infinite water area is simulated in the sound tube, and the acoustic parameters of the sample are measured.
A golden section search algorithm is proposed to search the optimal delay and amplitude to complete the
establishment of traveling wave field. On the basis of the above traveling wave field, the acoustic parameters
of water column and steel plate samples were measured by double hydrophone method, and the measured
values of transmission coefficient were in good agreement with the theoretical values. This method provides a
meaningful reference for the measurement of acoustic parameters.
Keywords: Traveling wave tube; Active sound absorption; Golden section search algorithm

2019-07-25 收稿; 2019-09-18 定稿
作者简介: 杨垚 (1994– ), 男, 云南大理人, 硕士, 研究方向: 水声信号处理。
† 通信作者 E-mail: 457953731@qq.com