PROBLEM TO BE SOLVED: To provide a gel sensor capable of detecting lactic acid a plurality of times by one time replacement of stimulation-responsive gel 21 when detecting lactic acid contained in sweat a plurality of times.SOLUTION: A gel sensor includes: stimulation-responsive gel 21 having gelatinous first gel 21a to seventh gel 21g that absorb sweat 24 and respond to lactic acid contained in the sweat 24 a discharge pump 14 for conveying the sweat 24 to the stimulation-responsive gel 21 and a rotary dial 12 that switches the places where the discharge pump 14 installs the sweat 24.SELECTED DRAWING: Figure 8COPYRIGHT: (C)2017,JPO&INPIT【課題】汗に含まれる乳酸の検出を複数行うときに刺激応答性ゲル21の1回の交換で乳酸の検出を複数回行えるゲルセンサーを提供する。【解決手段】汗24を吸収し汗24に含まれる乳酸に反応するゲル状の第1ゲル21a~第7ゲル21gを有する刺激応答性ゲル21と、汗24を刺激応答性ゲル21に輸送する吐出ポンプ14と、吐出ポンプ14が汗24を設置する場所を切り替える回転ダイアル12と、を備える。【選択図】図8
