Electromagnetic induction (EMI) techniques are widely used in geophysical surveying. Their success is mainly due to their easy and fast data acquisition, but the effectiveness of data inversion is strongly influenced by the quality of sensed data, resulting from suiting the device configuration to the physical features of the survey site. Forward modelling is an essential tool to optimize this aspect and design a successful surveying campaign. In this paper, a new software tool for forward EMI modelling is introduced. It extends and complements an existing open-source package for EMI data inversion, and includes an interactive graphical user interface. Its use is explained by a theoretical introduction and demonstrated through a simulated case study. The nonlinear data inversion issue is briefly discussed and the inversion module of the package is extended by a new regularized minimal-norm algorithm.

翻译：电磁感应技术广泛应用于地球物理勘探，其成功主要归因于数据采集的便捷与高效，但数据反演的有效性很大程度上取决于感知数据的质量——这取决于设备配置是否适配勘探场地的物理特征。前向建模是优化这一环节、设计成功勘探活动的关键工具。本文介绍了一款用于前向电磁感应建模的新型软件工具，该工具扩展并完善了现有的开源电磁感应数据反演软件包，并集成交互式图形用户界面。通过理论导引解释其使用方法，并借助模拟案例研究进行演示。我们简要讨论了非线性数据反演问题，并通过新提出的正则化最小范数算法对软件包的反演模块进行了扩展。