Zwislocki J J
Audiology. 1982;21(1):4-14. doi: 10.3109/00206098209072723.
Some principles underlying acoustic impedance measurements in the ear canal and their evaluation are reviewed. The following topics are included: some methods of measurement, useful frequency range, the middle-ear system, impedance characteristics of normal and some pathological ears, and the relation between the impedance and tympanometric results. Advantages and disadvantages of measurements with an acoustic bridge and parallel probe tubes are contrasted and the same is done for tympanometry versus static impedance measurements. The relation between tympanograms and static impedance data referred to the tympanic membrane is illustrated by means of a semihypothetical example. The example suggests that a probe frequency around 700 Hz is more informative in tympanometry than a probe frequency of 220 Hz.
本文回顾了耳道声阻抗测量的一些基本原理及其评估方法。内容包括：一些测量方法、有用的频率范围、中耳系统、正常耳和一些病理耳的阻抗特性，以及阻抗与鼓室导抗测量结果之间的关系。对比了使用声桥和并联探头管进行测量的优缺点，同时也对鼓室导抗测量与静态阻抗测量进行了对比。通过一个半假设的例子说明了鼓室导抗图与鼓膜静态阻抗数据之间的关系。该例子表明，在鼓室导抗测量中，700Hz左右的探测频率比220Hz的探测频率更具信息量。
