PROBLEM TO BE SOLVED: To provide an absorption member in which the size of a non-contact range with liquid in an electrode is detected.SOLUTION: An absorption member 10 has an absorber 50, an electrodes 61, 62 that comes into contact with the liquid absorbed to the absorber 50 to generate a current, and a detection device 90 that outputs a signal according to the size of parasitic resistance that varies according to the size of a non-contact range with the liquid in the electrode 61, 62.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】吸収部材において、電極における液体との非接触範囲の大きさを検出する。【解決手段】吸収部材10は、吸収体50と、前記吸収体50に吸収された液体に接することで電流を発生させる電極61,62と、前記電極61,62における液体との非接触範囲の大きさに応じて変化する寄生抵抗の大きさに応じた信号を出力する検出装置90と、を備える。【選択図】図1