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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Laser tracker ： ウィキペディア英語版 Laser tracker Laser trackers are instruments that accurately measure large objects by determining the positions of optical targets held against those objects. The accuracy of laser trackers is of the order of 0.025 mm over a distance of several metres.〔Bridges, 2009.〕 Some examples of laser tracker applications are to align aircraft wings during assembly〔Martin, 2007〕 and to align large machine tools.〔''Machine Design'', 2011.〕 To take measurements the technician first sets up a laser tracker on a tripod with an unobstructed view of the object to be measured. The technician removes a target from the base of the laser tracker and carries it to the object to be measured, moving smoothly to allow the laser tracker to follow the movement of the target. The technician places the target against the object and triggers measurements to be taken at selected points, sometimes by a remote control device. Measurements can be imported into different types of software to plot the points or to calculate deviation from the correct position.〔Vera, 2011.〕 The targets are known as "retroreflective" because they reflect the laser beam back in the same direction it came from (in this case, back to the laser tracker). One type of target in common use is called a spherically mounted retroreflector (SMR),〔''Machine Design'', 2011.〕 which resembles a ball bearing with mirrored surfaces cut into it.〔Martin, 2007.〕 ==History== The first prototype laser tracker was invented by Dr. Kam Lau in 1986. Eventually, in 1987 he would form his own company called Automated Precision Inc. API has refined tracking technology, building models that offered greater precision and portability. API has also developed products for machine tool calibration and other manufacturing processes. 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「Laser tracker」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.