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sunnykm

银虫 (正式写手)

[求助] 求高手解决交流阻抗问题

我做的是电容器材料,两种材料交流阻抗不一样,电容大小不一样,想用EIS来解释电容大小不一,其中一种虚部大很多,这能说明这种材料有更好的电容行为吗?
附上原始数据及origin图,求高手帮忙
材料一的EIS数据
9.668e+4, 1.798e+1, -1.658e+0, 1.805e+1, -5.3
8.105e+4, 1.802e+1, -1.413e+0, 1.808e+1, -4.5
6.641e+4, 1.816e+1, -1.158e+0, 1.819e+1, -3.7
5.469e+4, 1.813e+1, -1.023e+0, 1.815e+1, -3.2
4.590e+4, 1.819e+1, -8.486e-1, 1.821e+1, -2.7
3.711e+4, 1.817e+1, -6.916e-1, 1.819e+1, -2.2
3.125e+4, 1.814e+1, -7.220e-1, 1.816e+1, -2.3
2.539e+4, 1.825e+1, -6.309e-1, 1.826e+1, -2.0
2.148e+4, 1.833e+1, -5.716e-1, 1.834e+1, -1.8
1.758e+4, 1.836e+1, -5.222e-1, 1.836e+1, -1.6
1.465e+4, 1.841e+1, -4.448e-1, 1.841e+1, -1.4
1.172e+4, 1.833e+1, -4.779e-1, 1.834e+1, -1.5
9.668e+3, 1.851e+1, -3.822e-1, 1.852e+1, -1.2
8.105e+3, 1.854e+1, -3.718e-1, 1.855e+1, -1.1
6.641e+3, 1.857e+1, -3.734e-1, 1.857e+1, -1.2
5.469e+3, 1.860e+1, -3.584e-1, 1.860e+1, -1.1
4.590e+3, 1.863e+1, -3.639e-1, 1.863e+1, -1.1
3.711e+3, 1.866e+1, -3.675e-1, 1.867e+1, -1.1
3.125e+3, 1.870e+1, -3.789e-1, 1.870e+1, -1.2
2.539e+3, 1.872e+1, -3.977e-1, 1.872e+1, -1.2
2.148e+3, 1.877e+1, -4.185e-1, 1.877e+1, -1.3
1.758e+3, 1.879e+1, -4.589e-1, 1.880e+1, -1.4
1.465e+3, 1.885e+1, -4.874e-1, 1.886e+1, -1.5
1.172e+3, 1.890e+1, -5.366e-1, 1.891e+1, -1.6
9.668e+2, 1.915e+1, -4.894e-1, 1.915e+1, -1.5
8.105e+2, 1.919e+1, -5.575e-1, 1.920e+1, -1.7
6.641e+2, 1.925e+1, -6.294e-1, 1.926e+1, -1.9
5.469e+2, 1.932e+1, -7.119e-1, 1.933e+1, -2.1
4.590e+2, 1.937e+1, -7.905e-1, 1.939e+1, -2.3
3.711e+2, 1.946e+1, -8.975e-1, 1.948e+1, -2.6
3.125e+2, 1.952e+1, -9.915e-1, 1.955e+1, -2.9
2.539e+2, 1.962e+1, -1.123e+0, 1.965e+1, -3.3
2.148e+2, 1.969e+1, -1.236e+0, 1.973e+1, -3.6
1.758e+2, 1.979e+1, -1.393e+0, 1.984e+1, -4.0
1.465e+2, 1.988e+1, -1.558e+0, 1.994e+1, -4.5
1.172e+2, 2.000e+1, -1.793e+0, 2.008e+1, -5.1
9.766e+1, 2.013e+1, -1.993e+0, 2.023e+1, -5.7
8.138e+1, 2.024e+1, -2.293e+0, 2.037e+1, -6.5
6.975e+1, 2.035e+1, -2.646e+0, 2.052e+1, -7.4
5.744e+1, 2.047e+1, -3.056e+0, 2.069e+1, -8.5
4.650e+1, 2.058e+1, -3.529e+0, 2.088e+1, -9.7
3.756e+1, 2.071e+1, -4.120e+0, 2.111e+1, -11.3
3.150e+1, 2.083e+1, -4.813e+0, 2.138e+1, -13.0
2.570e+1, 2.097e+1, -5.656e+0, 2.172e+1, -15.1
2.123e+1, 2.112e+1, -6.675e+0, 2.215e+1, -17.5
1.744e+1, 2.130e+1, -7.909e+0, 2.272e+1, -20.4
1.436e+1, 2.149e+1, -9.411e+0, 2.346e+1, -23.7
1.191e+1, 2.172e+1, -1.125e+1, 2.446e+1, -27.4
9.766e+0, 2.205e+1, -1.337e+1, 2.579e+1, -31.2
8.071e+0, 2.231e+1, -1.605e+1, 2.749e+1, -35.7
6.643e+0, 2.269e+1, -1.947e+1, 2.990e+1, -40.6
5.486e+0, 2.303e+1, -2.348e+1, 3.289e+1, -45.6
4.542e+0, 2.341e+1, -2.832e+1, 3.674e+1, -50.4
3.742e+0, 2.383e+1, -3.451e+1, 4.194e+1, -55.4
3.090e+0, 2.401e+1, -4.111e+1, 4.761e+1, -59.7
2.550e+0, 2.430e+1, -5.038e+1, 5.594e+1, -64.3
2.105e+0, 2.447e+1, -5.985e+1, 6.465e+1, -67.8
1.738e+0, 2.390e+1, -7.564e+1, 7.933e+1, -72.5
1.434e+0, 2.401e+1, -8.917e+1, 9.235e+1, -74.9
1.184e+0, 2.439e+1, -1.054e+2, 1.082e+2, -77.0
9.766e-1, 2.602e+1, -1.250e+2, 1.277e+2, -78.2
8.071e-1, 2.718e+1, -1.486e+2, 1.510e+2, -79.6
6.643e-1, 2.877e+1, -1.774e+2, 1.797e+2, -80.8
5.486e-1, 3.082e+1, -2.116e+2, 2.138e+2, -81.7
4.542e-1, 3.396e+1, -2.520e+2, 2.543e+2, -82.3
3.742e-1, 3.776e+1, -3.018e+2, 3.041e+2, -82.9
3.090e-1, 4.284e+1, -3.610e+2, 3.635e+2, -83.2
2.550e-1, 4.933e+1, -4.320e+2, 4.348e+2, -83.5
2.105e-1, 5.786e+1, -5.168e+2, 5.200e+2, -83.6
1.738e-1, 6.858e+1, -6.184e+2, 6.222e+2, -83.7
1.434e-1, 8.209e+1, -7.400e+2, 7.445e+2, -83.7
1.184e-1, 9.960e+1, -8.845e+2, 8.901e+2, -83.6
9.766e-2, 1.248e+2, -1.059e+3, 1.066e+3, -83.3
6.643e-2, 1.875e+2, -1.510e+3, 1.522e+3, -82.9
4.542e-2, 2.885e+2, -2.144e+3, 2.163e+3, -82.3
3.090e-2, 4.400e+2, -3.043e+3, 3.074e+3, -81.8
2.105e-2, 6.671e+2, -4.296e+3, 4.348e+3, -81.2
1.434e-2, 1.013e+3, -6.032e+3, 6.116e+3, -80.5
材料二的EIS数据
9.668e+4, 1.456e+1, -1.166e+0, 1.461e+1, -4.6
8.105e+4, 1.459e+1, -1.006e+0, 1.462e+1, -3.9
6.641e+4, 1.470e+1, -8.199e-1, 1.472e+1, -3.2
5.469e+4, 1.467e+1, -7.258e-1, 1.469e+1, -2.8
4.590e+4, 1.472e+1, -6.193e-1, 1.473e+1, -2.4
3.711e+4, 1.472e+1, -4.899e-1, 1.473e+1, -1.9
3.125e+4, 1.468e+1, -5.076e-1, 1.469e+1, -2.0
2.539e+4, 1.474e+1, -4.611e-1, 1.475e+1, -1.8
2.148e+4, 1.483e+1, -4.044e-1, 1.483e+1, -1.6
1.758e+4, 1.483e+1, -3.624e-1, 1.484e+1, -1.4
1.465e+4, 1.487e+1, -3.283e-1, 1.487e+1, -1.3
1.172e+4, 1.485e+1, -3.113e-1, 1.485e+1, -1.2
9.668e+3, 1.493e+1, -2.299e-1, 1.493e+1, -0.9
8.105e+3, 1.494e+1, -2.137e-1, 1.494e+1, -0.8
6.641e+3, 1.495e+1, -2.098e-1, 1.496e+1, -0.8
5.469e+3, 1.497e+1, -1.968e-1, 1.497e+1, -0.8
4.590e+3, 1.499e+1, -1.815e-1, 1.499e+1, -0.7
3.711e+3, 1.500e+1, -1.782e-1, 1.500e+1, -0.7
3.125e+3, 1.500e+1, -1.779e-1, 1.501e+1, -0.7
2.539e+3, 1.501e+1, -1.762e-1, 1.501e+1, -0.7
2.148e+3, 1.504e+1, -1.933e-1, 1.504e+1, -0.7
1.758e+3, 1.504e+1, -1.960e-1, 1.504e+1, -0.7
1.465e+3, 1.506e+1, -2.170e-1, 1.506e+1, -0.8
1.172e+3, 1.509e+1, -2.389e-1, 1.509e+1, -0.9
9.668e+2, 1.522e+1, -1.705e-1, 1.522e+1, -0.6
8.105e+2, 1.523e+1, -2.105e-1, 1.523e+1, -0.8
6.641e+2, 1.525e+1, -2.591e-1, 1.525e+1, -1.0
5.469e+2, 1.526e+1, -3.125e-1, 1.527e+1, -1.2
4.590e+2, 1.528e+1, -3.671e-1, 1.528e+1, -1.4
3.711e+2, 1.530e+1, -4.426e-1, 1.530e+1, -1.7
3.125e+2, 1.531e+1, -5.119e-1, 1.532e+1, -1.9
2.539e+2, 1.534e+1, -6.137e-1, 1.535e+1, -2.3
2.148e+2, 1.535e+1, -7.065e-1, 1.537e+1, -2.6
1.758e+2, 1.538e+1, -8.396e-1, 1.540e+1, -3.1
1.465e+2, 1.540e+1, -9.834e-1, 1.543e+1, -3.7
1.172e+2, 1.543e+1, -1.194e+0, 1.548e+1, -4.4
9.766e+1, 1.549e+1, -1.375e+0, 1.555e+1, -5.1
8.138e+1, 1.552e+1, -1.652e+0, 1.561e+1, -6.1
6.975e+1, 1.556e+1, -1.987e+0, 1.568e+1, -7.3
5.744e+1, 1.560e+1, -2.378e+0, 1.578e+1, -8.7
4.650e+1, 1.564e+1, -2.827e+0, 1.590e+1, -10.2
3.756e+1, 1.569e+1, -3.399e+0, 1.606e+1, -12.2
3.150e+1, 1.575e+1, -4.064e+0, 1.627e+1, -14.5
2.570e+1, 1.582e+1, -4.877e+0, 1.656e+1, -17.1
2.123e+1, 1.590e+1, -5.855e+0, 1.695e+1, -20.2
1.744e+1, 1.601e+1, -7.040e+0, 1.749e+1, -23.7
1.436e+1, 1.614e+1, -8.483e+0, 1.823e+1, -27.7
1.191e+1, 1.630e+1, -1.024e+1, 1.925e+1, -32.1
9.766e+0, 1.655e+1, -1.229e+1, 2.062e+1, -36.6
8.071e+0, 1.674e+1, -1.483e+1, 2.237e+1, -41.5
6.643e+0, 1.703e+1, -1.806e+1, 2.483e+1, -46.7
5.486e+0, 1.729e+1, -2.182e+1, 2.784e+1, -51.6
4.542e+0, 1.760e+1, -2.632e+1, 3.166e+1, -56.2
3.742e+0, 1.799e+1, -3.203e+1, 3.674e+1, -60.7
3.090e+0, 1.833e+1, -3.818e+1, 4.235e+1, -64.4
2.550e+0, 1.875e+1, -4.656e+1, 5.019e+1, -68.1
2.105e+0, 1.933e+1, -5.533e+1, 5.861e+1, -70.7
1.738e+0, 1.935e+1, -6.903e+1, 7.169e+1, -74.3
1.434e+0, 2.014e+1, -8.153e+1, 8.398e+1, -76.1
1.184e+0, 2.150e+1, -9.656e+1, 9.892e+1, -77.4
9.766e-1, 2.420e+1, -1.144e+2, 1.169e+2, -78.1
8.071e-1, 2.633e+1, -1.357e+2, 1.382e+2, -79.0
6.643e-1, 2.949e+1, -1.616e+2, 1.643e+2, -79.7
5.486e-1, 3.296e+1, -1.918e+2, 1.946e+2, -80.2
4.542e-1, 3.775e+1, -2.275e+2, 2.306e+2, -80.6
3.742e-1, 4.356e+1, -2.708e+2, 2.742e+2, -80.9
3.090e-1, 5.077e+1, -3.218e+2, 3.258e+2, -81.0
2.550e-1, 5.984e+1, -3.823e+2, 3.870e+2, -81.1
2.105e-1, 7.086e+1, -4.541e+2, 4.596e+2, -81.1
1.738e-1, 8.443e+1, -5.394e+2, 5.460e+2, -81.1
1.434e-1, 1.006e+2, -6.404e+2, 6.482e+2, -81.1
1.184e-1, 1.203e+2, -7.595e+2, 7.689e+2, -81.0
9.766e-2, 1.471e+2, -9.020e+2, 9.139e+2, -80.7
6.643e-2, 2.088e+2, -1.268e+3, 1.285e+3, -80.6
4.542e-2, 2.997e+2, -1.778e+3, 1.803e+3, -80.4
3.090e-2, 4.213e+2, -2.498e+3, 2.533e+3, -80.4
2.105e-2, 5.855e+2, -3.514e+3, 3.562e+3, -80.5
1.434e-2, 8.171e+2, -4.945e+3, 5.012e+3, -80.6

两种材料的EIS图
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hw_zhong

铁杆木虫 (著名写手)

【答案】应助回帖

感谢参与,应助指数 +1
这没有半圆的形状啊,看不出容抗的特性啊。
2楼2012-02-16 22:24:32
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zhujunsheng

木虫 (正式写手)

【答案】应助回帖

感谢参与,应助指数 +1
sunnykm(金币+5): 谢谢 2012-02-19 18:14:39
你好,半圆只是双电层电容。材料电容是Nyquist图低频区竖直线部分,拟合后就可以比较了。
低调做人,诚实办事。
3楼2012-02-19 15:40:36
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lethe120

木虫 (正式写手)

【答案】应助回帖

感谢参与,应助指数 +1
sunnykm(金币+5): 你好,可以把那篇文献的题目告诉我吗? 2012-02-19 18:15:13
1)看斜率,斜率越近于90°,说明电容性越好!
2)需要要圆弧,通过公式(ASC nano最近有篇用阻抗来计算电容的,解释的很详细)计算。
3)使用软件模拟,得出对应的电容值!
4楼2012-02-19 15:47:16
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