OXYGEN SENSOR FOR LOW OXYGEN CONTENTS

摘要

An oxygen sensor for low oxygen concentration measurement is provided to prevent processing time delay caused by adding deoxidation material and reduce manufacturing cost by exactly and rapidly obtaining molten steel component. An oxygen sensor for low oxygen concentration measurement comprises: a molten steel electrode made of conductive material in which a molybdenum rod, a board, an irregular sheet or a melting point is high; and a standard electrode(S) made of solid electrolyte(10) and standard electrode material(20). The standard electrode material forming the standard electrode consists of mixture of niobium oxide and niobium. In the outer surface of the standard electrode, the negative electrode made of aluminum oxide is formed.