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拂晓时分

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[求助] 有关Zview中的参数意义已有1人参与

有没有人知道Zview中W-P,W-T,W-R,三个参数代表什么意义啊?
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何斌1215

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【答案】应助回帖

关于有限扩散长度的 Ws:
Z = R*tanh([I*T*w]^P) / (I*T*w)^P        Parameters: Ws-R, Ws-T, Ws-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 Ws-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 Ws-T = L^2 / 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.
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.
This version of the Warburg element is terminates in a finite resistance. At very low frequencies, Z’ approaches Ws-R and Z’‘ goes to zero.

关于有限扩散长度的 Wo:
Z = R*ctnh([I*T*w]^P) / (I*T*w)^P
       Parameters:        Wo-R, Wo-T, Wo-P
s 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.
2楼2015-07-31 10:16:11
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