PROBLEM TO BE SOLVED: To provide a simple device realized with small number of components and less processing at low costs, as opposed to conventional devises in which a peak value is estimated from sampling data obtained through A/D conversion of waveform change at a prescribed period for prescribed time to avoid low accuracy of a peak value of a current as a BP value measured in an analog circuit.SOLUTION: A measuring circuit is composed of a simple analog circuit and before measurement, a reference value is stored for measured values by measuring a reference CR circuit. When a human body is measured, a measured value is converted using the reference value and a BP value is calibrated by an IQ value because the BP value becomes low in response to a low capacitor component at electricity conduction of the human body.COPYRIGHT: (C)2014,JPO&INPIT【課題】BP値である電流のピーク値をアナログ回路で測定すると精度が低くなるため、従来は波形変化を一定周期で一定時間A/D変換して得られたサンプリンダデータからピーク値を推定していた。このため、部品点数が少なく処理も単純で装置コストが低い装置を提供する。【解決手段】測定回路は簡単なアナログ回路で構成し、実測前に、基準CR回路を測定して測定値の基準値を記憶しておく。人体実測時には、測定値を基準値で換算する一方、人体通電時のコンデンサー成分が低いとBP値が低下するので、IQ値によりBP値を補正する。【選択図】図1
