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Half Cell Meter How To Choose Use Single-electrode Or Double-electrode
Apr 27, 2018

钢筋锈蚀检测.jpg

Single-electrode 

Single-electrode method applies testing principle of half-cell self -potential method, the rebar under ionic environment

can be seen as an electrode, after corrosion, electrode potential change, therefore, potential reflects corrosion directly.

As it is well-know, battery consists of cathode and anode, Since rebar electrode has only half feature of the battery, 

therefore it is called half-cell.


Double-electrode

Double-electrode method also applies self-potential method. The difference only lies in that single-electrode method

applies to outside exposed structure of rebar end, while double-electrode method aplies to non-outside structure.


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