Title:
強磁性体の欠陥を測定するシステム及び方法
Document Type and Number:
Japanese Patent JP6637908
Kind Code:
B2
Abstract:
Defects in ferromagnetic materials are detected and characterized by analyzing the items' magnetic fields to find portions of the magnetic fields that differ in characteristic ways from residual magnetic fields generated by non-defective portions of the items. The portions of the magnetic fields that differ in the characteristic ways correspond to locations of the defects. The residual magnetic fields correspond to portions of the items distant from the defects. The defect characterization may include volume of material lost due to each defect and/or width and/or depth of each defect.
Inventors:
Davis Amir Dee
Trinkle William Jay
Gustafson Donald
Babcock The Force Philip S
Berthold Richard Tea
Trinkle William Jay
Gustafson Donald
Babcock The Force Philip S
Berthold Richard Tea
Application Number:
JP2016568883A
Publication Date:
January 29, 2020
Filing Date:
May 15, 2015
Export Citation:
Assignee:
The Charles Stark Drapa Laboratory Incorporated
International Classes:
G01N27/83
Domestic Patent References:
| JP2009537834A | ||||
| JP2011514534A | ||||
| JP2004037216A | ||||
| JP7072122A | ||||
| JP51131280U | ||||
| JP200555341A | ||||
| JP2013250114A |
Foreign References:
| WO2013128210A1 |
Attorney, Agent or Firm:
Shinichiro Tanaka
▲吉▼田 和彦
Hiroyuki Suda
Mitsuru Matsushita
Ichiro Kurasawa
Yasushi Yamamoto
▲吉▼田 和彦
Hiroyuki Suda
Mitsuru Matsushita
Ichiro Kurasawa
Yasushi Yamamoto