Lidén G, Björkman G, Nyman H, Kunov H
Acta Otolaryngol. 1977 Jan-Feb;83(1-2):140-5. doi: 10.3109/00016487709128824.
In recordings of the acoustic impedance of the middle ear (tympanometry) the change in air pressure in the ear canal will mostly influence the capacitive component of the acoustic impedance. By choosing a probe tone frequency close to the resonance frequency of the middle ear, characteristic tympanometric patterns can be demonstrated in certain middle ear lesions. The shapes of the curves are discussed in relation to the behaviour of the different components of the middle ear impedance.
在中耳声阻抗记录（鼓室导抗测量）中，耳道内气压的变化主要会影响声阻抗的电容性成分。通过选择接近中耳共振频率的探测音频率，在某些中耳病变中可呈现出特征性的鼓室导抗图型。根据中耳阻抗不同成分的特性对这些曲线的形状进行了讨论。
