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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 Nernst glower ： ウィキペディア英語版 Nernst glower The Nernst glower is an obsolete device for providing a continuous source of (near) infrared radiation for use in spectroscopy. Typically it was in the form of a cylindrical rod or tube composed of a mixture of certain oxides such as zirconium oxide (ZrO2), yttrium oxide (Y2O3) and erbium oxide (Er2O3) at a ratio of 90:7:3 by weight. They operated by being electrically heated to about 2000 °C. Initially they required external heating because the material is an insulator at room temperature. It has been replaced by a similar device known as a Globar made of silicon carbide (SiC) that operates at about 1100 °C. The Globar does not require an external preheater as it is an electrical conductor at any temperature. It is also better suited for use in evacuated systems. 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「Nernst glower」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.