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Recent developments in pulse reflectometry for tube inspection

机译:用于管检测的脉冲反射仪的最新进展

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摘要

Pulse Reflectometry is a noninvasive technique for probing the properties of cavities and materials. In recent years the acoustic version of pulse reflectometry has been applied successfully to inspection of condensers, boilers, preheaters and other heat exchangers,by sending acoustic pulses into the air enclosed within the tubes and analyzing the reflections created by defects on the internal diameter (ID). This method enables detection of defects such as blockages, holes and ID wall loss. Recent developments extending this technique further enable detection of a wider range of defect with higher accuracy. These developments will be presented here, along with tests demonstrating the performance of this technique.
机译:脉冲反射仪是一种探测腔体和材料特性的非侵入性技术。近年来,通过将声脉冲发送到封闭在管内的空气中并分析由内径缺陷造成的反射,ID的声学版本已成功应用于检查冷凝器,锅炉,预热器和其他热交换器。 )。这种方法能够检测出诸如堵塞,孔洞和ID壁损失的缺陷。扩展该技术的最新进展进一步使得能够以更高的精度检测更广泛的缺陷。这些发展将在这里进行介绍,并通​​过测试来证明该技术的性能。

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