更優越的球形電機

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圖片來源:Keith Weller

研究人員開發了一種球形電機,可能使機器人更加靈活。與繞軸旋轉的傳統電機不同,這種新裝置可以向任何方向旋轉。因此,這種球形電機利用計算機控制的電磁鐵,有一天可以為機械臂帶來更大的靈活性。

為了製造更出色的電機,約翰·霍普金斯大學的機械工程師 Gregory S. Chirikjian 和博士生 David Stein 在一個空心球體內安裝了 80 個磁鐵,然後將其放入一個內襯電磁鐵的支架中。啟用兩個或多個電磁鐵會吸引球體內的特定磁鐵,將其拉到新的位置。


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研究人員對他們的創造寄予厚望,包括取代當今機械臂中使用的傳統電機。事實上,Chirikjian 指出,使用類似肩關節的球形電機代替當今類似肘關節的電機,“您可以使用更少的關節,因為每個電機都將具有更大的運動自由度”。 “這也將使機械臂更加精確,因為每次使用關節時,都會給手臂引入一點間隙,一點擺動。”

球形電機也可能應用於您的電腦滑鼠。 Chirikjian 觀察到:“目前計算機上的大多數內容本質上都是視覺的。“但是人們可以想象,未來這種互動將更多地涉及觸覺。

Kate Wong is an award-winning science writer and senior editor at 大眾科學 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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