Decraemer W F, Dirckx J J, Funnell W R
Laboratory of Biomedical Physics, University of Antwerp, Belgium.
Hear Res. 1991 Jan;51(1):107-21. doi: 10.1016/0378-5955(91)90010-7.
The shape of the tympanic membrane is fairly complex and seems to be of significant importance in the coupling of the acoustic sound pressure in the external ear canal to the motion of the middle ear ossicles. A moiré shift interferometer was used to measure with great precision the shape of the external surface of human tympanic membrane. The dense matrix of z(x,y) values thus obtained is used to calculate different geometrical parameters (area, curvature, ...). We show further how the same data can be used to specify exactly the shape of the tympanic membrane in a mathematical finite-element model of the middle ear.
鼓膜的形状相当复杂，并且在外耳道声压与中耳听小骨运动的耦合中似乎具有重要意义。使用莫尔条纹位移干涉仪极其精确地测量了人鼓膜外表面的形状。由此获得的密集的z(x,y)值矩阵用于计算不同的几何参数（面积、曲率等）。我们进一步展示了如何在中耳的数学有限元模型中使用相同的数据来精确确定鼓膜的形状。
