Title:
DETECTION DEVICE FOR CORROSION OF STEEL STRUCTURE
Document Type and Number:
Japanese Patent JP2019215290
Kind Code:
A
Abstract:
To provide a detection device for corrosion of a steel structure which enables a corrosion state of the steel structure covered by an anti-corrosion material to be easily detected without breaking the anti-corrosion material.SOLUTION: The detection device for corrosion of the present invention comprises a metal piece 11 fixed to a steel structure 10, a current measurement part 18 measuring a current flowing caused by the corrosion of the metal piece 11, and a control part 19. The control part 19 comprises a calculation part. The calculation part calculates integrated electric quantity (actual integrated electric quantity) from the electric current flowing between the metal piece 11 and the steel structure 10 in a predetermined period, based on time lapse data of an electric current obtained by the current measurement part 18, and obtains the corrosion rate of the steel structure 10 from the actual integrated electric quantity based on the correlative relationship between the integrated electric quantity and the corrosion rate of the steel structure 10, the correlative relationship being obtained beforehand.SELECTED DRAWING: Figure 1
More Like This:
Inventors:
HOSHINO MASAHIKO
Application Number:
JP2018113394A
Publication Date:
December 19, 2019
Filing Date:
June 14, 2018
Export Citation:
Assignee:
NAKABOHTEC CORROSION PROTECTING CO LTD
International Classes:
G01N27/26; E02D31/06; G01N17/02
Domestic Patent References:
| JPH04120284A | 1992-04-21 | |||
| JP2010133749A | 2010-06-17 | |||
| JP2009204593A | 2009-09-10 | |||
| JP2005179725A | 2005-07-07 | |||
| JPH10511766A | 1998-11-10 |
Foreign References:
| WO2000045148A1 | 2000-08-03 |
Other References:
物質・材料研究機構材料基盤情報ステーション腐食研究グループ: "ACM型腐食センサ", オンライン, JPN6021030561, 2004, ISSN: 0004566633
Attorney, Agent or Firm:
Showa International Patent Office