OPTIMIZED JARVIK ELECTROHYDRAULIC ARTIFICIAL HEART

这项工作的最终(第三阶段)目标是充分优化 人工心脏支持系统的电子和电源组件 最大限度地减少对电池的需求，并发展高能量密度 锌空气电池组，以产生一个非常轻的重量和 完全便携，以获得受欢迎的患者和公众的接受 人造心脏。 此阶段工作的目的是：1)优化 换向直流电机在其换向期间，通过采用 具有脉宽的动态制动、滑行和倒塞方法 调制，以最大限度地减少反转泵所需的功率；以及2) 证明锌空气电池组的效用，以提供足够的电力 减少了体积和重量。 将进行台架测试以确定最佳控制器 配置。然后，将使用实际配置测试最佳配置 电池组以确定电池的最长使用时间。电池 电池组将使用锌空气纽扣电池建造，这种电池具有 密度是高品质镍镉电池的12倍。这个 目前的控制器配置将进行测试，以建立基线。

The ultimate (Phase III) objective of this effort is to fully optimize the electronic and power components of the artificial heart support system to minimize the demands on the battery, and to develop a high energy density zinc-air battery pack, to yield a system that is very light weight and completely portable in order to gain popular patient and public acceptance of the artificial heart. The purpose of this Phase I effort is to: 1) optimize the efficiency of the reversing DC motor, during the period of its reversal, by employing the methods of dynamic braking, coasting and plug reversing with pulse width modulation, to minimize the power required to reverse the pump; and 2) prove the utility of a zinc-air battery pack to provide adequate power at reduced volume and weight. Bench testing will be performed to identify the optimum controller configuration. Then the optimum configuration will be tested using actual battery packs to determine the maximum time of battery use. The battery packs will be constructed using zinc-air button cells which have an energy density twelve times that of high quality nickel-cadmium cells. The present controller configuration will be tested to establish a base-line.