利用Kramers-Kronig关系提取介电常数测量中传导的贡献
Extracting the contribution of conduction in permittivity measurements using the Kramers-Kronig relations
摘要：
材料介电常数的测量通常通过阻抗测量来执行。在这种情况下，测量的介电常数包括传导贡献。大多数情况下，进行这种测量的阻抗计即使可以进行低频测量，也不进行静态测量。当材料的偶极弛豫导致低频弛豫时，将弛豫现象与传导现象分离可能是困难的，特别是当多重弛豫现象重叠时。在这项工作中，我们使用的Kramers-Kronig关系进行分离，考虑的频率响应方面的介电常数。该方法的实用方面提出和实际测量证明
英文摘要：
The measurement of the material permittivity is often performed via an impedance measurement. In this case the measured permittivity includes the conduction contribution. Most of the time, the impedance-meters performing such measurement do not perform static measurement even if they can go to low frequencies. When the dipolar relaxation of the material leads to low frequency relaxation, separating the relaxation phenomenon from the conduction phenomenon can be difficult, especially when multiple relaxation phenomena superimpose. In this work we use the Kramers-Kronig relations to perform that separation by considering the frequency response aspect of the permittivity. The practical aspect of the method is presented and demonstrated on real measurements
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