Presentation 2018-01-31
Investigation of Possibility of Remote Non-contact Assessment of Metallic Pipes Using SQUID-NDE System -No.4-
Yoshimi Hatsukade, Natsuki Masutani, Yuki Azuma, Kazuya Sato, Tarou Yoshida,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this paper, we investigated ultrasonic guided wave all-around inspection of aluminium pipes with defects using high temperature superconducting (HTS) SQUID gradiometer and magnetostrictive sensors (MsS), which utilized pre-magnetized nickel thin plates. While rotating the sample pipes for every 30 degree, T(0, 1) mode guided wave-induced magnetic signals were measured by the gradiometer set above pre-magnetized nickel plate fimly glued around the pipes with lift-off of about 3 mm. Measurement results shows that in case of the sample with a slit at 0 degree, the magnetic signal reflected at the slit around 0 degrees were stronger than those at the other angles. However, magnetic signals due to incident wave and reflected wave at ends of the pipes also varied at angles. We investigated the reason of the change of the magnetic signals at angles and concluded that distribution of the magnetization of the nickel plates at the transmitter/receiver of the MsSs were not uniform, partly due to diamagnetic field of the plates.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Pipe / NDE / HTS-SQUID gradiometer / ultrasonic guided wave / all-around inspection
Paper # SCE2017-38
Date of Issue 2018-01-24 (SCE)

Conference Information
Committee SCE
Conference Date 2018/1/31(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English) SQUID, high frequency, sensing technologies and their applications, etc.
Chair Hiroaki Myoren(Saitama Univ.)
Vice Chair
Secretary (National Defense Academy)
Assistant Hiroyuki Akaike(Daido Univ.)

Paper Information
Registration To Technical Committee on Superconductive Electronics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Investigation of Possibility of Remote Non-contact Assessment of Metallic Pipes Using SQUID-NDE System -No.4-
Sub Title (in English)
Keyword(1) Pipe
Keyword(2) NDE
Keyword(3) HTS-SQUID gradiometer
Keyword(4) ultrasonic guided wave
Keyword(5) all-around inspection
1st Author's Name Yoshimi Hatsukade
1st Author's Affiliation Kindai University(Kindai Univ.)
2nd Author's Name Natsuki Masutani
2nd Author's Affiliation Kindai University(Kindai Univ.)
3rd Author's Name Yuki Azuma
3rd Author's Affiliation Kindai University(Kindai Univ.)
4th Author's Name Kazuya Sato
4th Author's Affiliation Kindai University(Kindai Univ.)
5th Author's Name Tarou Yoshida
5th Author's Affiliation Kindai University(Kindai Univ.)
Date 2018-01-31
Paper # SCE2017-38
Volume (vol) vol.117
Number (no) SCE-428
Page pp.pp.39-43(SCE),
#Pages 5
Date of Issue 2018-01-24 (SCE)