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honeyduck木虫 (正式写手)
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[交流]
【求助】请问用Zview拟合时warburg的各个参数代表什么 已有9人参与
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| 现在想要用到zview中的CPE和Warburg原件，请问各是什么意思，怎样的原件？CPE1—T,CPE1—p和W1-R,W1-T,W1-P各参数代表什么。以及Zview中的Wo(Warburg element(open))和Ws(Warburg element(short))有什么区别? |
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mengfan
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Finite Length Warburg - Short Circuit Terminus 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 |
5楼2010-04-27 10:12:28
mengfan
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ratio(金币+2):谢谢应助，欢迎常来！！ 2010-04-27 18:09
ratio(金币+2):谢谢应助，欢迎常来！！ 2010-04-27 18:09
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Finite Length Warburg - Open Circuit Terminus Z = R*ctnh([I*T*w]^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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逝水aa4楼2010-04-27 10:12:08
strawboss
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逝水aa
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