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First in situ tests of a new electrostatic resistivity meter

机译:新型静电电阻率仪的首次现场测试

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摘要

If field applications of the electrostatic method are limited to roughly the first ten metres due to the necessity of staying in a low-induction number domain, the possibilities it opens in urban area surveying, dry hole resistivity logging, non-destructive testing and laboratory studies of the complex resistivity justify the design of a new multi-frequency resistivity meter presenting a very low-input capacitance and high-phase sensitivity. After a first series of sample measurements in the laboratory, the new resistivity meter was tested in two different field contexts: the mapping of building remains in a Gallo-Roman archaeological site under a flat meadow and the assessment of the thickness of anthropogenic layers in a town. The first test allowed a direct comparison with previous galvanic resistivity measurements and proved a very good agreement between the magnitude and spatial distribution of electrical resistivity. The second test established its reliable measuring abilities in a disturbed environment.
机译:如果由于必须保持在低感应数域内而将静电方法的现场应用限制在大约前十米处,那么它在市区测量,干孔电阻率测井,无损检测和实验室研究中的可能性就很大复电阻率的合理性证明了一种新型的多频电阻率仪的设计是合理的,该仪表具有非常低的输入电容和高相位灵敏度。在实验室进行了第一批样品测量后,在两个不同的现场环境下测试了新的电阻率仪:在平坦草甸下的高卢-罗马考古遗址中对建筑物残骸进行制图,并评估了人类活动层的厚度。镇。第一次测试可以直接与以前的电流电阻率测量结果进行比较,并证明了电阻率的大小和空间分布之间有很好的一致性。第二项测试建立了在干扰环境下的可靠测量能力。

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