The transient response from a transmitter–receiver coil system inside a multi-layer cylindrical conductive configuration is obtained. The particular set-up applies to well logging as well as to eddy current tube testing. In this work, a number of improvements are presented to existing models for an efficient calculation of the induced voltage. These include: domain truncation, novel treatment of arbitrary number of layers in order to avoid computational overflows and efficient time response calculation. The latter is based on a combination of Laplace inversion techniques for short- and long-time transient responses. This article is part of the theme issue ‘Advanced electromagnetic non-destructive evaluation and smart monitoring’.

中文翻译：

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多层圆柱导电介质瞬态涡流响应的高效计算

获得了多层圆柱形导电配置内的发射器 - 接收器线圈系统的瞬态响应。特定的设置适用于测井以及涡流管测试。在这项工作中，对现有模型进行了许多改进，以有效计算感应电压。这些包括：域截断、对任意层数的新颖处理以避免计算溢出和有效的时间响应计算。后者基于拉普拉斯反演技术的组合，用于短期和长期瞬态响应。本文是主题问题“高级电磁无损评估与智能监测”的一部分。