【摘要】 文章综合考虑检波器磁路系统中外壳、磁靴等部件的电磁感应对固定线圈感应电流的影响,建立了涡流地震检波器的七参数机电磁动力学模型,并与四参数模型进行了对比。理论分析及测试结果表明,七参数模型能够较准确地描述涡流检波器的宽频带动态特性,从而为检波器的特性研究、参数辨识以及进一步的研制开发提供了理论基础。更多还原

【Abstract】 This article studies synthetically the theory in the electromagnetic induction of geophone magnetic circuit system and how shell, magnetic boots and other parts can effect the induction current of fixed coil. The 7 parameters electromagnetic dynamic model of edd acceleration geophone is proposed compared with the 4-parameter model, the theoretical analysis and test results show that the 7-parameter model is more accurate in representation of the dynamic broadband characteristics of Eddy Acceleration Geophone, so it provides a theoretical basis for further research and development of geophone characteristics.更多还原