PROBLEM TO BE SOLVED: To provide a skin condition sensor capable of making variations smaller than ever before in evaluating a moisturizing state of skin, and to provide a skin moisturizing state evaluation method using the same.SOLUTION: In a skin condition sensor 10 according to the invention, a first contact terminal 23A connected to one electrode of a power source 12 through a first resistor 16 and a second contact terminal 23B connected to the other electrode of the power source 12 are held in a state of being separated at regular intervals. The sensor 10 detects a substitute value for a capacitance value C1 of a capacitance component 92 varying according to a moisturizing state of skin 91, on the basis of a step response of inter-terminal voltage V4 of the first and second contact terminals 23A and 23B when the power source 12 outputs step voltage by bringing the first and second contact terminals 23A and 23B into contact with the skin 91.COPYRIGHT: (C)2015,JPO&INPIT【課題】皮膚の保湿状態の評価のばらつきを従来よりも小さくすることが可能な皮膚状態センサ及びそれを用いた皮膚保湿評価方法の提供を目的とする。【解決手段】本発明に係る皮膚状態センサ10では、電源12の一方の電極に第1の抵抗16を介して接続された第1の接触端子23Aと、電源12の他方の電極に接続された第2の接触端子23Bとが一定間隔をあけた状態に保持され、第1と第2の接触端子23A,23Bを皮膚91に接触させて電源12がステップ電圧を出力したときの第1と第2の接触端子23A,23Bの端子間電圧V4のステップ応答に基づいて皮膚91の保湿状態に応じて変化する静電容量成分92の静電容量値C1の代用値を検出する。【選択図】図1
