更优越的球形电机

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图片来源:Keith Weller

研究人员开发了一种球形电机,可能使机器人更加灵活。与绕轴旋转的传统电机不同,这种新设备可以向任何方向旋转。因此,这种球形电机利用计算机控制的电磁铁,有一天可以为机械臂带来更大的灵活性。

为了制造更出色的电机,约翰·霍普金斯大学的机械工程师 Gregory S. Chirikjian 和博士生 David Stein 在一个空心球体内安装了 80 个磁铁,然后将其放入一个内衬电磁铁的支架中。激活两个或多个电磁铁会吸引球体内的特定磁铁,将其拉到新的位置。


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研究人员对他们的创造寄予厚望,包括取代当今机械臂中使用的传统电机。事实上,Chirikjian 指出,使用类似肩关节的球形电机代替当今类似肘关节的电机,“您可以使用更少的关节,因为每个电机都将具有更大的运动自由度”。 “这也将使机械臂更加精确,因为每次使用关节时,都会给手臂引入一点间隙,一点摆动。”

球形电机也可能应用于您的电脑鼠标。 Chirikjian 观察到:“目前计算机上的大多数内容本质上都是视觉的。“但是人们可以想象,未来这种交互将更多地涉及触觉。

Kate Wong is an award-winning science writer and senior editor at 大众科学 focused on evolution, ecology, anthropology, archaeology, paleontology and animal behavior. She is fascinated by human origins, which she has covered for more than 25 years. Recently she has become obsessed with birds. Her reporting has taken her to caves in France and Croatia that Neandertals once called home, to the shores of Kenya's Lake Turkana in search of the oldest stone tools in the world, to Madagascar on an expedition to unearth ancient mammals and dinosaurs, to the icy waters of Antarctica, where humpback whales feast on krill, and on a "Big Day" race around the state of Connecticut to find as many bird species as possible in 24 hours. Kate is co-author, with Donald Johanson, of Lucy's Legacy: The Quest for Human Origins. She holds a bachelor of science degree in biological anthropology and zoology from the University of Michigan. Follow Wong on X (formerly Twitter) @katewong

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