PROBLEM TO BE SOLVED: To accurately measure biological information depending on the range of arrival of measuring current.SOLUTION: An electrode E1 and an electrode E2 are disposed with a distance D12 in-between. An electrode E3 and an electrode E4 are disposed with a distance D34 in-between between the electrode E1 and the electrode E2. A motion control part 44 switches the mode to a first measuring mode for distributing the measuring current I between the electrode E1 and the electrode E2 and detecting measuring voltage V between the electrode E3 and the electrode E4, or to a second measuring mode for distributing the measuring current 1 between the electrode E3 and the electrode E4 and detecting the measuring voltage V between the electrode E1 and the electrode E2. An information generating part 42 calculates a fat rate F according to the measuring current I and the measuring voltage V in the first measuring mode, and calculates a subcutaneous fat thickness Lf according to the measuring current I and the measuring voltage V in the second measuring mode.COPYRIGHT: (C)2012,JPO&INPIT【課題】測定電流の到達範囲に依存する生体情報を高精度に測定する。【解決手段】電極E1と電極E2とは間隔D12をあけて配置される。電極E3と電極E4とは間隔D34をあけて電極E1と電極E2との間に配置される。動作制御部44は、測定電流Iを電極E1と電極E2との間に流すとともに電極E3と電極E4との間の測定電圧Vを検出する第1測定モードと、測定電流Iを電極E3と電極E4との間に流すとともに電極E1と電極E2との間の測定電圧Vを検出する第2測定モードとを切替える。情報生成部42は、第1測定モードにおける測定電流Iと測定電圧Vとに応じて脂肪率Fを算定し、第2測定モードにおける測定電流Iと測定電圧Vとに応じて皮下脂肪厚Lfを算定する。【選択図】図2
