PROBLEM TO BE SOLVED: To provide a biological information measuring device which differentially detects a potential difference between two electrodes for biological sensors and achieves a reduction in a space while having a ground electrode separately from two electrodes.SOLUTION: The biological information measuring device 1 is equipped with first and second electrodes 3, 4 disposed in a manner to make contact with or to be capacitively coupled to a human body M, the ground electrode 5 capacitively coupled with a ground, a device body part 2 having the first electrode 3 and the second electrode 4 provided to be separate from each other on a first side surface 2a being a human body side when being attached to the human body and the ground electrode 5 on a second side surface 2b which is on the side opposite from the human body side when being attached to the human body and is opene to a space side, and a biological information receiving part 10 which is embedded in the device body part 2, operates by using the ground as a reference potential, and differentially detects the potential difference between the first and second electrodes 3, 4 for acquiring the biological information.COPYRIGHT: (C)2011,JPO&INPIT【課題】2つの生体センサ用電極間の電位差を差動検出でき、しかも2つの電極とは別にグランド電極を設けつつ省スペース化を可能にした生体情報計測装置を提供すること。【解決手段】この生体情報計測装置1は、人体Mに接触又は容量結合するように配置される第1及び第2の電極3,4と、グランドと容量結合するグランド電極5と、人体装着時に人体側となる第1の側面2aに前記第1の電極3と前記第2の電極4とが離間して設けられ、人体装着時に人体側とは反対側で空間側に開放した第2の側面2bに前記グランド電極5が設けられた機器本体部2と、前記機器本体部2に内蔵され、前記グランドを基準電位として動作し、前記第1及び第2の電極3,4の電極間の電位差を差動で検出して生体情報を取得する生体情報受信部10とを具備する。【選択図】図1
