The MESA Lambda oxygen probe operates based on the electrochemical properties of zirconia ceramic. Its core principle is to indirectly calculate the carbon potential (C-Potential) by measuring the oxygen concentration in the furnace atmosphere, thereby controlling the heat treatment process.

Specifically, the Lambda probe operates in the following manner:

Sampling Tube Design: The Lambda probe uses a sampling tube to introduce gas into the measurement chamber, thus preventing the zirconia ceramic from being damaged by direct exposure to high temperatures or mechanical shocks, extending its service life. Days pass one by one, and books must be read page by page.