翻訳と辞書 Words near each other ・ Goodmania ・ Goodmans ・ Goodmans Corner, California ・ Goodmans Industries ・ Goodmanson ・ Goodman–Nguyen–van Fraassen algebra ・ Goodmayes ・ Goodmayes railway station ・ Goodmill, California ・ Goodmorning Grammar High School ・ Goodna railway station ・ Goodna, Queensland ・ Goodness ・ Goodness (album) ・ Goodness (band) ・ Goodness factor ・ Goodness gracious ・ Goodness Gracious (Ellie Goulding song) ・ Goodness Gracious Me ・ Goodness Gracious Me (BBC) ・ Goodness Gracious Me (song) ・ Goodness of fit ・ Goodness Ohiremen Ajayi ・ Goodness! ・ Goodness, How Sad ・ GoodnessTv ・ Goodnestone ・ Goodnestone Park ・ Goodnestone, Dover ・ Goodnestone, Swale Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Goodness factor ： ウィキペディア英語版 Goodness factor Goodness factor is a metric developed by Eric Laithwaite to determine the 'goodness' of an electric motor.〔 〕〔 〕 Using it he was able to develop efficient magnetic levitation induction motors.〔 〕 :$G\; =\; \backslash frac\; \}\; =\; \backslash frac\; \}\; \}$ where :''G'' is the goodness factor (factors above 1 are likely to be efficient) :''A''m, ''A''e are the cross sections of the magnetic and electric circuit :''l''m, ''l''e are the lengths of the magnetic and electric circuits :''μ'' is the permeability of the core :''ω'' is the angular frequency the motor is driven at :''σ'' is the conductivity of the conductor From this he showed that the most efficient motors are likely to be relatively large. However, the equation only directly relates to non-permanent magnet motors. Laithwaite showed that for a simple induction motor this gave: :$G\; \backslash propto\; \backslash frac$ where ''p'' is the pole pitch arc length, ''ρ''r is the surface resistivity of the rotor and ''g'' is the air gap. ==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「Goodness factor」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.