PROBLEM TO BE SOLVED: To detect an extreme value of an acceleration pulse wave more appropriately.SOLUTION: A pulse wave analyzer (100) includes: first detection means (110) for detecting at least two or more of inflection points (t(0) to t(4)) of an acceleration pulse wave corresponding to a second-order differential value of a pulse wave of a living body second detection means (120) for detecting a time (t(B) to t(E)) in which an absolute value of a first-order differential value of the acceleration pulse wave becomes minimum for each interval between the at least two or more of the inflection points and third detection means (130) for detecting a value of the acceleration pulse wave corresponding to the time detected by the second detection means as a feature value of the acceleration pulse wave used for monitoring the body condition of the living body.COPYRIGHT: (C)2014,JPO&INPIT【課題】加速度脈波の極値をより好適に検出する。【手段】脈波解析装置(100)は、生体の脈波の2階微分値に相当する加速度脈波の変曲点(t(0)からt(4))を少なくとも2つ以上検出する第1検出手段(110)と、少なくとも2つ以上の変曲点の間の区間毎に、加速度脈波の1階微分値の絶対値が最小となる時刻(t(B)からt(E))を検出する第2検出手段(120)と、第2検出手段が検出した時刻に対応する加速度脈波の値を、生体の体調を監視するために用いられる加速度脈波の特徴値として検出する第3検出手段(130)とを備える【選択図】図3
