A hydromechanical biomimetic cochlea: Experiments and models
A hydromechanical biomimetic cochlea: Experiments and models
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DOI：
10.1121/1.2141296
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发表时间：
2006-01-01
影响因子：
2.4
通讯作者：
Hubbard, AE
中科院分区：
文献类型：
--
作者：
Chen, FY;Cohen, HI;Hubbard, AE
本文介绍了人工耳蜗的结构、测量和建模。在压电膜基底上沉积不连续的铜束，制成人工基底膜。与哺乳动物耳蜗中的两个流体通道不同，在ABM的一侧实现了单个流体通道，便于使用激光来检测另一侧的ABM振动。对ABM和ACoadema进行测量。对反弹道导弹的测量结果表明，反弹道导弹的纵向耦合很强。通过使用激光切割相邻光束之间的膜来实现减少的纵向耦合。用激光切割的ABM从ACoerma的测量结果表明耳蜗样的功能，包括行波，尖锐的高频滚降，和特定位置的频率选择性。同伴的机械设备的计算模型，制定和实施使用电路模拟器。将实验数据与模拟结果进行了比较。ABM和ACochlea计算模型的模拟结果与实验结果相似。(c)2006年，美国声学学会。
The construction, measurement, and modeling of an artificial cochlea (ACochlea) are presented in this paper. An artificial basilar membrane (ABM) was made by depositing discrete Cu beams on a piezomembrane substrate. Rather than two fluid channels, as in the mammalian cochlea, a single fluid channel was implemented on one side of the ABM, facilitating the use of a laser to detect the ABM vibration on the other side. Measurements were performed on both the ABM and the ACochlea. The measurement results on the ABM show that the longitudinal coupling on the ABM is very strong. Reduced longitudinal coupling was achieved by cutting the membrane between adjacent beams using a laser. The measured results from the ACochlea with a laser-cut ABM demonstrate cochlear-like features, including traveling waves, sharp high-frequency rolloffs, and place-specific frequency selectivity. Companion computational models of the mechanical devices were formulated and implemented using a circuit simulator. Experimental data were compared with simulation results. The simulation results from the computational models of the ABM and the ACochlea are similar to their experimental counterparts. (c) 2006 Acoustical Society of America.