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sunnykm

银虫 (正式写手)

应助: 1 (幼儿园)
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虫号: 1029515
注册: 2010-05-27
性别: MM
专业: 高分子合成化学

[求助] 求高手帮解析EIS谱

各位高手，本人在文献中看到这样的一句话，Warburg region 和Vertical region 之间的转折点位knee frequency，这表示有扩散电阻到电容行为的转折，好的电容行为，knee frequency 越大越好
我想知道这个knee frequency 该怎样得到？可以从EIS谱的数据中直接读出来吗？
附上一组数据，求解析高手指点

Freq/Hz, Z'/ohm, Z"/ohm, Z/ohm, Phase/deg

9.668e+4, 7.654e+0, 9.258e-2, 7.655e+0, 0.7
8.105e+4, 7.566e+0, 9.589e-2, 7.566e+0, 0.7
6.641e+4, 7.326e+0, 9.632e-2, 7.327e+0, 0.8
5.469e+4, 7.167e+0, 3.035e-1, 7.173e+0, 2.4
4.590e+4, 7.083e+0, 2.023e-1, 7.085e+0, 1.6
3.711e+4, 7.009e+0, 2.526e-1, 7.013e+0, 2.1
3.125e+4, 7.014e+0, 2.166e-1, 7.017e+0, 1.8
2.539e+4, 6.904e+0, 1.720e-1, 6.906e+0, 1.4
2.148e+4, 6.751e+0, 2.253e-1, 6.754e+0, 1.9
1.758e+4, 6.759e+0, 1.371e-1, 6.761e+0, 1.2
1.465e+4, 6.781e+0, 3.132e-2, 6.781e+0, 0.3
1.172e+4, 6.902e+0, 1.159e-1, 6.903e+0, 1.0
9.668e+3, 6.827e+0, 1.996e-1, 6.830e+0, 1.7
8.105e+3, 6.807e+0, 1.695e-1, 6.809e+0, 1.4
6.641e+3, 6.810e+0, 1.230e-1, 6.811e+0, 1.0
5.469e+3, 6.805e+0, 9.606e-2, 6.806e+0, 0.8
4.590e+3, 6.806e+0, 6.544e-2, 6.806e+0, 0.6
3.711e+3, 6.806e+0, 4.098e-2, 6.806e+0, 0.3
3.125e+3, 6.810e+0, 2.096e-2, 6.810e+0, 0.2
2.539e+3, 6.804e+0, -2.220e-2, 6.804e+0, -0.2
2.148e+3, 6.810e+0, -3.861e-2, 6.811e+0, -0.3
1.758e+3, 6.814e+0, -4.758e-2, 6.814e+0, -0.4
1.465e+3, 6.806e+0, -7.522e-2, 6.806e+0, -0.6
1.172e+3, 6.816e+0, -9.552e-2, 6.817e+0, -0.8
9.668e+2, 6.825e+0, -6.935e-2, 6.825e+0, -0.6
8.105e+2, 6.829e+0, -1.112e-1, 6.830e+0, -0.9
6.641e+2, 6.851e+0, -1.453e-1, 6.852e+0, -1.2
5.469e+2, 6.837e+0, -2.032e-1, 6.840e+0, -1.7
4.590e+2, 6.847e+0, -2.476e-1, 6.851e+0, -2.1
3.711e+2, 6.863e+0, -3.143e-1, 6.870e+0, -2.6
3.125e+2, 6.873e+0, -3.786e-1, 6.883e+0, -3.2
2.539e+2, 6.889e+0, -4.684e-1, 6.904e+0, -3.9
2.148e+2, 6.900e+0, -5.463e-1, 6.922e+0, -4.5
1.758e+2, 6.927e+0, -6.519e-1, 6.957e+0, -5.4
1.465e+2, 6.944e+0, -7.742e-1, 6.987e+0, -6.4
1.172e+2, 6.979e+0, -9.385e-1, 7.041e+0, -7.7
9.766e+1, 6.976e+0, -1.048e+0, 7.055e+0, -8.5
8.138e+1, 7.116e+0, -1.268e+0, 7.228e+0, -10.1
6.975e+1, 7.159e+0, -1.464e+0, 7.307e+0, -11.6
5.744e+1, 7.203e+0, -1.755e+0, 7.414e+0, -13.7
4.650e+1, 7.287e+0, -2.082e+0, 7.578e+0, -15.9
3.756e+1, 7.348e+0, -2.555e+0, 7.780e+0, -19.2
3.150e+1, 7.418e+0, -3.010e+0, 8.005e+0, -22.1
2.570e+1, 7.514e+0, -3.641e+0, 8.350e+0, -25.9
2.123e+1, 7.627e+0, -4.348e+0, 8.779e+0, -29.7
1.744e+1, 7.770e+0, -5.214e+0, 9.357e+0, -33.9
1.436e+1, 7.937e+0, -6.232e+0, 1.009e+1, -38.1
1.191e+1, 8.138e+0, -7.390e+0, 1.099e+1, -42.2
9.766e+0, 8.514e+0, -8.887e+0, 1.231e+1, -46.2
8.071e+0, 8.825e+0, -1.054e+1, 1.375e+1, -50.1
6.643e+0, 9.222e+0, -1.255e+1, 1.557e+1, -53.7
5.486e+0, 9.690e+0, -1.485e+1, 1.773e+1, -56.9
4.542e+0, 1.040e+1, -1.746e+1, 2.032e+1, -59.2
3.742e+0, 1.106e+1, -2.066e+1, 2.344e+1, -61.8
3.090e+0, 1.195e+1, -2.439e+1, 2.716e+1, -63.9
2.550e+0, 1.299e+1, -2.877e+1, 3.156e+1, -65.7
2.105e+0, 1.425e+1, -3.388e+1, 3.676e+1, -67.2
1.738e+0, 1.572e+1, -3.989e+1, 4.287e+1, -68.5
1.434e+0, 1.752e+1, -4.697e+1, 5.013e+1, -69.5
1.184e+0, 1.964e+1, -5.522e+1, 5.861e+1, -70.4
9.766e-1, 2.234e+1, -6.542e+1, 6.913e+1, -71.1
8.071e-1, 2.541e+1, -7.660e+1, 8.070e+1, -71.6
6.643e-1, 2.913e+1, -9.011e+1, 9.470e+1, -72.1
5.486e-1, 3.347e+1, -1.058e+2, 1.109e+2, -72.4
4.542e-1, 3.925e+1, -1.233e+2, 1.294e+2, -72.3
3.742e-1, 4.545e+1, -1.445e+2, 1.515e+2, -72.5
3.090e-1, 5.250e+1, -1.689e+2, 1.768e+2, -72.7
2.550e-1, 6.065e+1, -1.969e+2, 2.061e+2, -72.9
2.105e-1, 6.975e+1, -2.301e+2, 2.405e+2, -73.1
1.738e-1, 8.016e+1, -2.689e+2, 2.806e+2, -73.4
1.434e-1, 9.171e+1, -3.146e+2, 3.277e+2, -73.7
1.184e-1, 1.049e+2, -3.680e+2, 3.826e+2, -74.1
9.766e-2, 1.191e+2, -4.353e+2, 4.513e+2, -74.7
6.643e-2, 1.550e+2, -5.994e+2, 6.191e+2, -75.5
4.542e-2, 2.073e+2, -8.259e+2, 8.515e+2, -75.9
3.090e-2, 2.713e+2, -1.148e+3, 1.179e+3, -76.7
2.105e-2, 3.554e+2, -1.595e+3, 1.634e+3, -77.4
1.434e-2, 4.613e+2, -2.225e+3, 2.273e+3, -78.3

[ Last edited by sunnykm on 2011-9-23 at 16:20 ]

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