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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 Thermally Stimulated Depolarization Current ： ウィキペディア英語版 Thermally Stimulated Depolarization Current Thermally Stimulated Depolarization Current (TSDC) is a scientific technique used to measure dielectric properties of materials. Specifically, it can be used to measure the thermally stimulated depolarization of molecules within a material. One method of doing so is to place the material between two electrodes, cool the material in the presence of an external electric field, remove the field once a desired temperature has been reached, and measure the current between the electrodes as the material warms. The external electric field must be applied at a sufficiently high temperature to allow the molecular dipoles time to align with the field. Because the dielectric relaxation time increases exponentially on cooling, the polarization caused by their alignment with the field gets "frozen-in". So, when the field is removed and the material begins to warm the dipoles begin to "thaw" whereby losing their net alignment and thus the material become depolarized. This depolarization can be measured if the material is sandwiched between two ohmic electrodes and the current is measured on warming. As the material depolarizes, charges are pulled to (or pushed away from) the electrodes which causes a current through the measuring device. ==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「Thermally Stimulated Depolarization Current」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.