有一LiFePO4交流阻抗图(如图),用Zview分析,选择不同的范围进行拟合,得到的拟合结果相差比较大,不知哪位高手能帮我搞一下?另外,请教一下:高频、次高频和低频怎么区分?谢谢!

数据在附件中。
9.668e+4, 4.757e+0, -1.821e+0, 5.094e+0, -20.9
8.105e+4, 4.897e+0, -2.173e+0, 5.358e+0, -23.9
6.641e+4, 5.081e+0, -2.615e+0, 5.714e+0, -27.2
5.469e+4, 5.275e+0, -3.083e+0, 6.110e+0, -30.3
4.590e+4, 5.459e+0, -3.547e+0, 6.510e+0, -33.0
3.711e+4, 5.727e+0, -4.193e+0, 7.098e+0, -36.2
3.125e+4, 5.952e+0, -4.804e+0, 7.649e+0, -38.9
2.539e+4, 6.271e+0, -5.654e+0, 8.444e+0, -42.0
2.148e+4, 6.579e+0, -6.469e+0, 9.226e+0, -44.5
1.758e+4, 6.992e+0, -7.577e+0, 1.031e+1, -47.3
1.465e+4, 7.443e+0, -8.785e+0, 1.151e+1, -49.7
1.172e+4, 8.146e+0, -1.049e+1, 1.328e+1, -52.2
9.668e+3, 8.971e+0, -1.225e+1, 1.518e+1, -53.8
8.105e+3, 9.845e+0, -1.408e+1, 1.718e+1, -55.0
6.641e+3, 1.107e+1, -1.644e+1, 1.982e+1, -56.0
5.469e+3, 1.261e+1, -1.901e+1, 2.282e+1, -56.4
4.590e+3, 1.433e+1, -2.162e+1, 2.593e+1, -56.5
3.711e+3, 1.687e+1, -2.506e+1, 3.021e+1, -56.0
3.125e+3, 1.942e+1, -2.808e+1, 3.414e+1, -55.3
2.539e+3, 2.313e+1, -3.187e+1, 3.938e+1, -54.0
2.148e+3, 2.664e+1, -3.506e+1, 4.403e+1, -52.8
1.758e+3, 3.158e+1, -3.879e+1, 5.002e+1, -50.9
1.465e+3, 3.666e+1, -4.226e+1, 5.595e+1, -49.1
1.172e+3, 4.375e+1, -4.610e+1, 6.355e+1, -46.5
9.668e+2, 5.092e+1, -4.879e+1, 7.052e+1, -43.8
8.105e+2, 5.763e+1, -5.123e+1, 7.711e+1, -41.6
6.641e+2, 6.566e+1, -5.345e+1, 8.466e+1, -39.1
5.469e+2, 7.382e+1, -5.500e+1, 9.205e+1, -36.7
4.590e+2, 8.134e+1, -5.584e+1, 9.866e+1, -34.5
3.711e+2, 9.059e+1, -5.618e+1, 1.066e+2, -31.8
3.125e+2, 9.803e+1, -5.592e+1, 1.129e+2, -29.7
2.539e+2, 1.068e+2, -5.504e+1, 1.201e+2, -27.3
2.148e+2, 1.137e+2, -5.380e+1, 1.257e+2, -25.3
1.758e+2, 1.214e+2, -5.191e+1, 1.321e+2, -23.1
1.465e+2, 1.282e+2, -4.987e+1, 1.376e+2, -21.3
1.172e+2, 1.358e+2, -4.682e+1, 1.437e+2, -19.0
9.766e+1, 1.420e+2, -4.472e+1, 1.489e+2, -17.5
8.138e+1, 1.474e+2, -4.203e+1, 1.533e+2, -15.9
6.975e+1, 1.524e+2, -3.925e+1, 1.574e+2, -14.4
5.744e+1, 1.569e+2, -3.658e+1, 1.611e+2, -13.1
4.650e+1, 1.608e+2, -3.399e+1, 1.644e+2, -11.9
3.756e+1, 1.644e+2, -3.154e+1, 1.674e+2, -10.9
3.150e+1, 1.677e+2, -2.930e+1, 1.702e+2, -9.9
2.570e+1, 1.705e+2, -2.712e+1, 1.726e+2, -9.0
2.123e+1, 1.731e+2, -2.528e+1, 1.750e+2, -8.3
1.744e+1, 1.755e+2, -2.379e+1, 1.771e+2, -7.7
1.436e+1, 1.778e+2, -2.260e+1, 1.793e+2, -7.2
1.191e+1, 1.798e+2, -2.165e+1, 1.811e+2, -6.9
9.766e+0, 1.817e+2, -2.007e+1, 1.828e+2, -6.3
8.071e+0, 1.835e+2, -1.982e+1, 1.846e+2, -6.2
6.643e+0, 1.854e+2, -1.978e+1, 1.864e+2, -6.1
5.486e+0, 1.874e+2, -2.001e+1, 1.884e+2, -6.1
4.542e+0, 1.896e+2, -2.049e+1, 1.907e+2, -6.2
3.742e+0, 1.920e+2, -2.107e+1, 1.932e+2, -6.3
3.090e+0, 1.944e+2, -2.192e+1, 1.956e+2, -6.4
2.550e+0, 1.977e+2, -2.279e+1, 1.990e+2, -6.6
2.105e+0, 2.005e+2, -2.378e+1, 2.019e+2, -6.8
1.738e+0, 2.060e+2, -2.435e+1, 2.074e+2, -6.7
1.434e+0, 2.092e+2, -2.542e+1, 2.107e+2, -6.9
1.184e+0, 2.125e+2, -2.633e+1, 2.142e+2, -7.1
9.766e-1, 2.161e+2, -2.713e+1, 2.178e+2, -7.2
8.071e-1, 2.194e+2, -2.814e+1, 2.212e+2, -7.3
6.643e-1, 2.233e+2, -2.904e+1, 2.252e+2, -7.4
5.486e-1, 2.269e+2, -2.988e+1, 2.289e+2, -7.5
4.542e-1, 2.306e+2, -3.036e+1, 2.326e+2, -7.5
3.742e-1, 2.343e+2, -3.107e+1, 2.364e+2, -7.6
3.090e-1, 2.380e+2, -3.174e+1, 2.401e+2, -7.6
2.550e-1, 2.415e+2, -3.233e+1, 2.437e+2, -7.6
2.105e-1, 2.452e+2, -3.308e+1, 2.475e+2, -7.7
1.738e-1, 2.491e+2, -3.398e+1, 2.514e+2, -7.8
1.434e-1, 2.530e+2, -3.504e+1, 2.554e+2, -7.9
1.184e-1, 2.571e+2, -3.628e+1, 2.597e+2, -8.0
9.766e-2, 2.615e+2, -3.724e+1, 2.641e+2, -8.1
8.071e-2, 2.658e+2, -3.919e+1, 2.687e+2, -8.4
6.643e-2, 2.706e+2, -4.163e+1, 2.738e+2, -8.7
5.486e-2, 2.756e+2, -4.418e+1, 2.791e+2, -9.1
4.542e-2, 2.811e+2, -4.713e+1, 2.850e+2, -9.5
3.742e-2, 2.871e+2, -5.060e+1, 2.915e+2, -10.0
3.090e-2, 2.933e+2, -5.453e+1, 2.983e+2, -10.5
2.550e-2, 3.000e+2, -5.894e+1, 3.057e+2, -11.1
2.105e-2, 3.073e+2, -6.353e+1, 3.138e+2, -11.7
1.738e-2, 3.148e+2, -6.859e+1, 3.222e+2, -12.3
1.434e-2, 3.229e+2, -7.432e+1, 3.314e+2, -13.0
1.184e-2, 3.314e+2, -8.026e+1, 3.409e+2, -13.6
[ Last edited by 小小木虫888 on 2010-3-18 at 11:22 ] |