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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 Knudsen pump ： ウィキペディア英語版 Knudsen pump The Knudsen pump is a gas pump that utilizes no moving parts. Instead it uses the so-called thermal transpiration, the phenomenon that gas molecules drift from the cold end to the hot end of a narrow channel. This thermal transpiration flow is induced when the boundary walls of the pump have a temperature gradient. Because the pump is based simply on temperature differences and has no moving parts, it could provide reliable and precise control of gas flow for a variety of applications, such as gas-sensing breath analyzers, chemical weapons detectors,〔(Gas pump made of minerals has no moving parts, PhysOrg.com )〕 and even in satellites.〔Knudsen Pump and Its Possibility of Application to Satellite Control, Kataoka, T. Tsutahara, M. Ogawa, K. Yamamoto, Y. Shoji, M. Sakai, Y., THEORETICAL AND APPLIED MECHANICS 2004, VOL 53, pages 155-162〕 It is named after Martin Knudsen a Danish physicist. ==References== 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「Knudsen pump」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.