Detail A New Twist on an Old Idea   Oleh:  [s.n] Jenis: Article from Bulletin/Magazine Dalam koleksi: The Economist (http://search.proquest.com/) vol. 403 no. 8787 (Jun. 2012), page S5. Topik: Robots; Research Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: EE29.72 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel A robot's hand is one of the most important parts of its anatomy. Indeed, it defines the machine's capabilities. Industrial robots that do repetitive tasks like welding and cutting are usually single-handed. Those hands, moreover, tend to be simple claws--as befits the simplicity of their job. Robots intended to work with and care for people, however, will need more dexterity. To simplify that task a group of researchers from Germany and Italy, working as part of a European robotics programme called DEXMART, has borrowed an idea from ancient catapult-makers. Instead of having large motors in the forearm to wind the tendons in and out, their design uses smaller ones to twist the tendons. As anyone who came into contact with Roman catapults 2,000 years ago would have known, twisted fibres can transmit hugely powerful force. The group's experimental hand does not throw boulders, but it can swiftly grasp and lift a load weighing five kilograms using 24 small, high-speed motors to twist a similar number of tendons. Each of the hand's five fingers is operated by four separate tendons (one for each of the three joints in every finger, and the other to pull the finger straight). The remaining tendons articulate the wrist: left and right, and up and down. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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