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Three-component VLF using an unmanned aerial system as sensor platform

机译：使用无人航空系统作为传感器平台的三分量超低频

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In a pilot project, very low frequency (VLF) measurements were performed using a prototype unmanned airborne system (UAS) at a test area near Neuchǎtel, Switzerland. The VLF system operates over an extended frequency range of 1-250 kHz and consists of a three-component magnetic field sensor and a data logger, both deployed on an unmanned helicopter. Various developments had to be done prior to the first flight. The devices went through a weight reduction process, the noise influence of the aircraft on the devices had to be investigated, and an appropriate suspension had to be developed. This first experiment was conducted on a test site with anomalies due to man-made objects: a buried pipeline and a power cable with known orientation and location. The performance of the system in comparison with ground-based VLF data was investigated. First results demonstrate the feasibility of airborne VLF measurements with a UAS to detect buried pipelines and power cables.
机译：在一个试点项目中，在瑞士纳沙泰尔附近的测试区域使用原型无人驾驶机载系统（UAS）进行了非常低频（VLF）测量。 VLF系统在1-250 kHz的扩展频率范围内运行，由三部分磁场传感器和数据记录器组成，两者均部署在无人直升机上。在第一次飞行之前必须进行各种开发。这些设备经过了减重过程，必须调查飞机对设备的噪声影响，并且必须开发适当的悬架。第一个实验是在一个测试地点进行的，该地点存在人造物体引起的异常：埋入的管道和具有已知方向和位置的电源电缆。与地面VLF数据相比，研究了该系统的性能。最初的结果证明了使用UAS进行机载VLF测量以检测地下管线和电力电缆的可行性。

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