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hanxing369銅蟲 (小有名氣)
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[求助]
Zview 擬合中韋伯阻抗參數(shù) 已有1人參與
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小弟想用Zview擬合的韋伯阻抗計算體相鋰離子擴散系數(shù)...但不了解原件參數(shù)的意義 W1-R 98.28 W1-T 180.1 W1-P 0.5302 請問這R,T,P分別代表什么,單位是什么... 以及怎樣用這些參數(shù)計算鋰離子擴散系數(shù)... (PS, 我之前只用過 Zre=Re+Rct+σw*ω-0.5 這個公式,選擇阻抗數(shù)據(jù)實軸計算,F(xiàn)在想用Zview擬合后的阻抗數(shù)據(jù)計算,可惜電化學功底比較淺,無從下爪中...) 希望各位大神不吝賜教~~ 先謝過... |

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Finite Length Warburg - Open Circuit Terminus Z = R*ctnh(^P) / (I*T*w)^P Parameters: Wo-R, Wo-T, Wo-P This element is also known as a Generalized Finite Warburg element (GFW). It is an extension of another more common element, the Finite-Length Warburg (FLW). To use the FLW equation, set Wo-P = 0.5 and set its freedom to 'fixed'. The FLW is the solution of the one-dimensional diffusion equation of a particle, which is completely analogous to wave transmission in a finite-length RC transmission line. In the diffusion interpretation Wo-T = L2 / D. (L is the effective diffusion thickness, and D is the effective diffusion coefficient of the particle). The GFW is similar to this, but for it the square root becomes a continuously varying exponent Ws-P such that 0 < Ws-P < 1. This version of the Warburg element is terminates in a open circuit. At very low frequencies, the Z' approaches Wo-R and Z'‘ continues to increase - similar to the behavior of a capacitor. If the data exhibits only the high frequency (45 degree slope) behavior and not the transition to low frequency behavior, either Wo-R or Wo-T must be set as Fixed(X). Alternately, a CPE can be used in this situation. |
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