METHOD OF USING ACM SENSOR

PROBLEM TO BE SOLVED: To provide a method of using an ACM sensor capable of evaluating the influence of the corrosion caused by only a salt damage by dividing the synergistic action between the salt damage and sulfur dioxide.SOLUTION: An ACM sensor includes: a substrate 2 made of a conductive material; an insulator film 3 formed on a surface of the substrate 2; and a conductive film 4 that is formed on a surface of the insulator film 3 and made of a conductive material different from that of the substrate 2. The method of using the ACM sensor includes: a step (S102) of short-circuiting the substrate 2 to the conductive film 4 via a conducting wire prior to the exposure of the ACM sensor 1 to the atmospheric air; a step (S104) of dipping the ACM sensor 1 short-circuited via the conducting wire into salt water of a predetermined concentration, and removing an oxide film formed on the surfaces of the substrate 2 and conductive film 4 of the ACM sensor 1; and a step (S106) of removing the salt water from the surface of the ACM sensor 1. 【課題】 塩害と亜硫酸ガスの相乗作用を分離して、塩害だけによる腐食の影響を評価できるＡＣＭセンサの使用方法を提供する。【解決手段】 導電材料からなる基板２と、該基板２の表面に成膜された絶縁膜３と、該絶縁膜３の表面に成膜されると共に、基板２と異なる導電材料からなる導電膜４とからなるＡＣＭセンサの使用方法であって、ＡＣＭセンサ１の大気中への暴露に先立って、基板２と導電膜４とを導線で短絡するステップ（Ｓ１０２）と、導線で短絡されたＡＣＭセンサ１を所定濃度の塩水に浸して、ＡＣＭセンサ１の基板２と導電膜４の表面に形成された酸化膜を除去するステップ（Ｓ１０４）と、塩水をＡＣＭセンサ１の表面から除去するステップ（Ｓ１０６）と、を有する。【選択図】図１