Tactile Computer Reader for Knowledge Representation

9400195麦克斯韦尔这个项目的研究目标是找到一种压电材料和表面贴装电子设备的组合，在独特的几何结构中，将产生适用于全页盲文显示的可靠的大触觉计算机控制阵列。对压电材料和几何形状的选择必须产生一个坚固的设计，一个当大规模生产时盲人社区负担得起的设计。可靠性是一个特别关键的目标，因为密集的触觉阵列可以有数千个管脚，所有这些都必须工作。目前40个字符的显示与建议的大约1000个字符的显示相比，意味着制造产量必须提高25倍。针对压电陶瓷材料的应力/应变识别、外加电场和夹具周期预测寿命的研究需要有限元计算机建模。为了提高可制造性和可靠性，需要一种包含平面元件而不是堆叠的悬臂梁执行器的几何模块化方法。因此，大阵列将由许多小的、扁平的、相同的、批量生产的模块组成。***

9400195 Maxwell The aim of the research of this project is to find a combination of piezoelectric materials and surface mount electronics that, in a unique geometry, will produce a reliable Large Tactile Computer Controlled Array suitable for a full page Braille display. The choice of piezoelectric materials and geometry must produce a robust design, a design that when mass produced is affordable to the Blind community. The reliability is a particular key aim in that a dense tactile array can have several thousand pins, all of which must work. Present displays of 40 characters compared to the proposed display of approximately 1000 characters means that the manufacturing yield must be improved by a factor of 25. Research directed at the piezoelectric ceramic materials to identify the stress/strain, applied electric fields and fixture cycles to predict lifetime requires finite element computer modeling. To enhance the manufacturability and reliability, a geometric modular approach incorporating planar element rather than stacked cantilever actuators is required. Thus the Large Array will be made from many small, flat, identical, mass produced modules. ***