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Experimental Investigation of Defects Inspection for FRP Pipeline based on Single-side NMR

机译：基于单侧NMR的FRP管道缺陷检测试验研究

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摘要

The fiberglass reinforced plastic (FRP) pipelines have been used widely in oil-gas gathering and transportation. The defects of FRP pipelines would increase with the extension of service time. However, it is very difficult to detect the defects of FRP pipelines on-spot quickly. In this paper, a new method detecting defects for FRP pipes has been provided based on the NMR. The proton density distributions have been obtained at different depth of FRP components using single-side NMR. The experimental results show that there is a significant change of proton density distribution at the location of defects. And, these results would be useful for defects inspection of composite material component.
机译：玻璃纤维增强塑料（FRP）管道已广泛用于油气集合和运输。 FRP管道的缺陷随着服务时间的延长而增加。 然而，很难快速地检测到斑点流水线的缺陷。 在本文中，已经基于NMR提供了一种检测FRP管道缺陷的新方法。 使用单侧NMR在不同的FRP组件中获得质子密度分布。 实验结果表明，在缺陷位置存在质子密度分布的显着变化。 并且，这些结果对于复合材料组分的缺陷检查是有用的。

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