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Special Purpose Dexterous Manipulator : ウィキペディア英語版
Dextre


Dextre, also known as the Special Purpose Dexterous Manipulator (SPDM), is a two armed robot, or telemanipulator, which is part of the Mobile Servicing System on the International Space Station (ISS), and does repairs otherwise requiring spacewalks. It was launched March 11, 2008 on mission STS-123.
Dextre is part of Canada's contribution to the ISS and is named to represent its dexterous nature. It is sometimes also referred to as the SPDM (Special Purpose Dexterous Manipulator). Dextre is the third Canadian robotic arm used on the ISS, preceded by the Space Shuttle's Canadarm and the large Canadarm2. Dextre was designed and manufactured by MacDonald Dettwiler (MDA).〔CanWest News Service, ('"Canada Hand" successfully installed' ), 15 March 2006〕
In the early morning of February 4, 2011, Dextre completed its first official assignment which consisted of unpacking two pieces for Kounotori 2 while the on-board crew was sleeping.〔(Dextre Successfully Completes Its First Official Job ), NASA, 2011-02-04〕
==Structure==
Dextre resembles a gigantic torso fitted with two extremely agile, arms. The 3.5 metre long body〔http://www.nasa.gov/mission_pages/station/structure/elements/dextre.html〕 pivots at the "waist". The body has a grapple fixture at one end that can be grasped by the larger Space Station Arm, Canadarm2 so that Dextre can be positioned at the various Orbital Replacement Unit (ORU) worksites around the Space Station. The other end of the body has a latching end effector virtually identical to that of Canadarm2, so that Dextre can also be attached to Space Station grapple fixtures or the Mobile Base System. At the end of Dextre's arms are ORU/Tool Changeout Mechanisms (OTCM). The OTCM has built-in grasping jaws, a retractable socket drive, a monochrome TV camera, lights, and an umbilical connector that can provide power, data, and video to/from a payload. Dextre moves one arm at a time, while one arm may hold onto the station for stability the other is available to perform tasks.〔http://www.btb.termiumplus.gc.ca/tpv2alpha/alpha-eng.html?lang=eng&i=1&index=ent&srchtxt=uro%20tool%20changeout%20mechanism〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Dextre」の詳細全文を読む



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