发明名称 |
CORROSION EVALUATION DEVICE, AND CORROSION EVALUATION METHOD |
摘要 |
A corrosion evaluation device for performing a quantitative evaluation of corrosion by measuring a quantity of decrease in the thickness of a magnetic material which is covered by a non magnetic material or a magnetic material which is not covered by a non magnetic material which includes: a magnetic field generating device for generating such a magnetic field that includes the magnetic material in a magnetic path, a Giant Magnet-Resistive effect (GMR) sensor provided with a GMR sensor for detecting a magnetic flux leakage with regard to the magnetic material and converts a change in the magnetic flux into an electrical signal, a thickness reduction calculation portion for calculating a quantity of decrease in the thickness of the magnetic material based on the electrical signal. The corrosion evaluation device precisely performs a quantitative evaluation of corrosion even when the magnetic material, which is to be evaluated, is covered by a non magnetic material. |
申请公布号 |
CA2633691(A1) |
申请公布日期 |
2007.06.28 |
申请号 |
CA20062633691 |
申请日期 |
2006.12.18 |
申请人 |
IHI CORPORATION |
发明人 |
TAGAMI, MINORU;TODA, KATSUYA;HATANAKA, HIROAKI |
分类号 |
G01N27/83 |
主分类号 |
G01N27/83 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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