An Acoustic Transmission Line for Impedance Measurement
An Acoustic Transmission Line for Impedance Measurement
复制标题
用于阻抗测量的声学传输线
DOI：
10.1121/1.1916018
复制
发表时间：
1939
影响因子：
2.4
通讯作者：
W. M. Hall
中科院分区：
文献类型：
--
作者：
W. M. Hall
描述了一种根据管的特性声阻抗快速准确测量声阻抗的方法和设备。测量包括简单地确定沿管的最大和最小声压的位置和相对大小。然后可以从稍微修改的双曲正切图中直接读取管端部的阻抗。给出了两种测量截面不同于测量管的声元件阻抗的方法。
A method and apparatus are described for rapid and accurate measurement of acoustic impedance in terms of the characteristic acoustic impedance of a tube. The measurement consists of the simple determination of the location and relative magnitude of the maximum and minimum sound pressures along the tube. The impedance of the termination of the tube can then be read directly from a slightly modified hyperbolic tangent chart. Two methods are given for measuring the impedance of acoustic elements with cross sections different from that of the measuring tube.