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Pitch-Catch (Low Frequency) Bondtesters

机译:音调捕捉(低频)测试仪

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摘要

"Pitch-catch" (low frequency) bondtesters are often used in airplane maintenance to inspect honeycomb sandwich structure in situ. However, use of these instruments is often troublesome due to difficult interpretation and less-than-adequate inspection sensitivity. In this paper, new approaches for the use of low frequency bondtesters are described. Boeing developed these algorithms using theoretical work and instrumentation developed by the Commonwealth Scientific and Industrial Research Organisation (CSIRO). Use of these techniques can result in an order of magnitude increase in sensitivity. The techniques require frequency analysis, available in bondtesters such as the CSIRO "baNDIcoot", but identify settings that can be used on conventional bondtesters that display results only in the time domain.
机译:飞机维修中经常使用“音高”(低频)粘结测试仪来现场检查蜂窝状夹层结构。但是,由于解释困难和检查灵敏度不足,使用这些仪器通常很麻烦。在本文中,介绍了使用低频债券测试仪的新方法。波音使用联邦科学与工业研究组织(CSIRO)开发的理论工作和仪器开发了这些算法。使用这些技术可能会导致灵敏度提高一个数量级。该技术需要频率分析,可以在诸如CSIRO“ baNDIcoot”之类的债券测试仪中使用,但是要识别可用于仅在时域中显示结果的常规债券测试仪上使用的设置。

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