Title:
PROBE AND CORROSION ENVIRONMENT MEASUREMENT DEVICE
Document Type and Number:
Japanese Patent JP2021006763
Kind Code:
A
Abstract:
To provide a probe which allows for measuring thickness and salt content of a liquid film formed on a metal surface, and accurately grasping a relationship between the salt content of the liquid film and a corrosion rate.SOLUTION: A probe 2 provided herein is used for metal corrosion environment measurement by the electrochemical impedance method. The probe 2 comprises a main body 10, a pair of first electrodes 11A, 11B, a pair of second electrodes 12A, 12B, and a sulfate ion concentration detector 22. The main body 10 has a surface 10a on which a liquid film is formed during measurement. The pair of first electrodes 11A, 11B are exposed to the surface 10a of the main body 10 and are spaced apart by a first distance L1. The pair of second electrodes 12A, 12B are exposed to the surface 10a of the main body 10 and are spaced apart by a second distance L2 greater than the first distance L1. The sulfate ion concentration detector 22 has a detection surface 22a exposed to the surface 10a of the main body 10.SELECTED DRAWING: Figure 9
Inventors:
KATO YUSUKE
DEJI TAKEJI
TAKAHATA ISAMU
DEJI TAKEJI
TAKAHATA ISAMU
Application Number:
JP2019120576A
Publication Date:
January 21, 2021
Filing Date:
June 27, 2019
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
G01N27/02; G01N17/02; G01N17/04; G01N27/06; G01R27/22
Attorney, Agent or Firm:
Ascend Patent Business Corporation