氧探頭是一種用于測量含碳氣氛中氧分壓的傳感器，通常采用氧化鋯材料。它可以通過氧化鋯內外兩側不同的氧濃度產生的氧電勢來間接測量爐內氣氛的碳勢。氧探頭按檢測方式分為采樣檢測式和直插式兩種類型。

          Oxygen probe is a kind of sensor used to measure the partial pressure of oxygen in carbon atmosphere, usually using zirconia material. The carbon potential of the atmosphere in the furnace can be indirectly measured by the oxygen potential generated by the different oxygen concentrations on both sides of the zirconia. The oxygen probe can be divided into two types: sampling detection type and direct insertion type.