Use of a remote-sensing superhigh-frequency acoustic emission transducer in the inspection of welds

被引：0
|
作者：
Gorbunov, VI [1 ]
Sutorikhin, VA [1 ]
机构：
[1] Tomsk Polytech Univ, Tomsk, Russia
来源：
INDUSTRIAL LABORATORY | 1999年 / 65卷 / 10期
关键词：
D O I：
暂无
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Inspection of welded joints using an acoustic emission method is described. Instrumentation of domestic manufacture is used: an IAS-4 single-channel acoustic tester and a special unit for power supply and amplification for an SHF remote-sensing transducer (proprietary design). During the welding, because of the temperature gradient between the molten weld metal and the solid HPC metal of a high-pressure cylinder, defects arise that are detected by recording acoustic emission signals in the cooled weld within 5 - 10 min. The rise and decay of the acoustic activity can be detected using contact and SHF remote-sensing acoustic emission transducers.
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收藏
页码：654 / 656
页数：3
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