Ko W H, Zhu W L, Maniglia A J
Department of Electrical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.
Otolaryngol Clin North Am. 1995 Feb;28(1):29-41.
This article presents the transducer principles of possible middle ear hearing devices with their characteristics and selection considerations summarized. The frequency response and the needed force and displacement at the ossicular chain sites were measured to determine approximately the system requirements and design considerations. The power required to vibrate the ossicular chain is estimated to be of the order of 0.1 watt, which is three orders of magnitude smaller than the power consumption of devices being developed in various laboratories. Careful engineering design and evaluation is needed. A design example of the transducer used with a partially implantable, noncontact electromagnetic hearing device is presented in this article with laboratory evaluation results.
本文介绍了可能的中耳听力装置的换能器原理，并总结了其特性和选择考虑因素。测量了听骨链部位的频率响应以及所需的力和位移，以大致确定系统要求和设计考虑因素。估计振动听骨链所需的功率约为0.1瓦，这比各个实验室正在研发的装置的功耗小三个数量级。因此需要进行精心的工程设计和评估。本文给出了与部分可植入、非接触式电磁听力装置一起使用的换能器的设计示例以及实验室评估结果。
