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本文扼要阐述了涡流检查的基本原理,并重点介绍了多频涡流仪具有“去伪存真”的特殊功能,以及蒸发器传热管多频涡流检查技术的现状。
This article briefly describes the basic principles of eddy current testing, and focuses on the multi-frequency eddy current instrument with a special function to remove fake and save true, and the status of multi-frequency eddy current inspection of the evaporator heat transfer tube.