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近年来,微波促进化学反应引起人们的广泛关注,但是热点和热失控等问题限制了微波化学工业的发展。为了解决这些问题,需要研究电磁波与化学反应体系的相互作用规律。其中,电磁波作用下化学反应体系极化特性的表征是研究电磁波与化学反应体系的相互作用的基础。本文通过改进的SmoluchowskiDebye方程,得到了极性分子反应体系的极化特性的表征。由于电磁波作用下化学反应体系的极化过程实际上是一个线性时变系统的响应,只在一定条件下是马尔可夫过程。本文进一步讨论了极化的时域表征与频域表征的关系以及频域表征的局限性。
In recent years, microwave chemical reaction has aroused widespread concern, but hot and thermal runaway and other issues have limited the development of the microwave chemical industry. In order to solve these problems, we need to study the law of interaction between electromagnetic waves and chemical reaction system. Among them, the characterization of the polarization characteristics of the chemical reaction system under the action of electromagnetic waves is the basis for the study of the interaction between the electromagnetic wave and the chemical reaction system. In this paper, through the improved SmoluchowskiDebye equation, we get the characterization of the polarization characteristics of the polar molecule reaction system. The polarization process of a chemical reaction system under the action of electromagnetic waves is actually a response of a linear time-varying system, and only under certain conditions is a Markov process. This paper further discusses the relationship between the time-domain characterization of polarization and frequency-domain characterization and the limitation of frequency-domain characterization.