ICMST-Tohoku 2018
Oct. 23 - 26, 2018
Sendai, Japan
ICMST-Shenzhen 2016
Nov 1 - 4, 2016
Shenzhen, China
ICMST-Kobe 2014
Nov 2(Sun) - 5(Wed), 2014
Kobe, Japan
Nuclear Regulation Authority Outline of the New Safety Standards for Light Water Reactors for Electric Power Generation
For Public Comment
Outline of New Safety Standard (Design Basis)
For Public Comment
New Safety Standards (SA) Outline (Draft)
For Public Comment
Outline of New Safety Standard(Earthquake and Tsunami)(DRAFT)

Vol.10 No.2(Aug)
Vol.10 No.1(May)
Vol.9 No.4(Feb)
Vol.9 No.3(Nov)

< Other Issues


Occasional Topics
OTjapan Measures for Tsunami Striking Nuclear Power Station in Japan
Special Article: The Great Tohoku Earthquake (1)
OTjapan The Tragedy of “To Be” Principle in the Japanese Nuclear Industry
EJAMOT_CN3_Figure1_The_outside_view_of_CEFR OTChinaPlanning and Consideration on SFR R&D Activities in China
< All Occasional Topics

Featured Articles
EJAM7-3NT72 A New Mechanical Condition-based Maintenance Technology Using Instrumented Indentation Technique
EJAM7-3NT73 Survey robots for Fukushima Daiichi Nuclear Power Plant

(in English)


Vol.11 No.1previous AASP19(150-151-152-153-154-155)-AA156 NT93

Academic Articles
Regular Paper Vol.11 No.1 (2019) p.16 - p.26

Hammering inspection using AE sensor for embedded hardware


Susumu MIURA1, Shouji SEKIGUCHI1 and Kouzou HATTORI1,*, Ryota OGAWA2, Hiroaki FUJIYOSHI2, Mitsuyuki SAGISAKA2 and Yoshihiro ISOBE2

1 Japan Nuclear Fuel Limited, 4-108 Obuchi, Rokkasho-mura, Kamikita-gun, Aomori 039-3212, Japan
2 Nuclear Fuel Industries, Ltd., 950 Asashiro-Nishi, 1-Chome, Kumatori-Cho, Sennan-Gun, Osaka 590-0481, Japan
Non-destructive evaluation technique was developed for embedded hardware using hammering inspection with AE (Acoustic Emission) sensor. The integrity of the embedded hardware is judged from both the vibration duration of the embedded hardware recorded by the AE sensor and the frequency analysis of the vibration signal. Mockup tests were carried out in order to verify the effectiveness of the technique and to obtain the diagnostic criteria. The technique was then applied to the field inspection.
embedded hardware, hammering inspection, acoustic emission sensor, vibration duration, frequency analysis
Full Paper: PDF EJAM Vol. 11 No. 1 pp.16-26 "Hammering inspection using AE sensor for embedded hardware"

Article Information
Article history:
Received 24 October 2018
Accepted 22 May 2019