Oxygen sensor for automotive use

摘要

Oxygen sensor for automotive use utilizes a disc shaped wafer of a solid electrolyte, preferably zirconia stabilized with MgO, which is extremely resistant to abrasion and the effects of repeated temperature excursions over long periods of use. The housing comprises a hollow metal tube stepped at one end to support the electrolyte wafer and hermetically sealed to the wafer by a metal oxide frit which is melted in a vauum. The electrodes comprise a thick film Ag - Pd alloy which is bonded to the wafer by means of a glass forming binder.