Luggin Probe

Definition - What does Luggin Probe mean?

A luggin probe is an instrument that determines the degree to which a metal material is likely to corrode. It is a small tube made of glass or plastic filled with electrolytes that serve as a reference electrode to a contacted surface that is called a working electrode.

A luggin probe is also known as a luggin capillary.

Corrosionpedia explains Luggin Probe

A luggin probe can also be used to change the potential of a working electrode material by minimizing the iR drop in the electrolytic cell formed when it interacts with the surface being examined. This capability makes luggin probes useful for preventing corrosion.

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