PROBLEM TO BE SOLVED: To provide a noninvasive constituent concentration measuring apparatus and a constituent concentration measuring apparatus controlling method.SOLUTION: The blood constituent concentration measuring apparatus includes a light generating means for outgoing intensity-modulated light 1 intensity-modulated by a predetermined frequency, an excitation light source 23 as a light modulation means and a light outgoing means, an acoustic wave generator 24 to output an acoustic wave 2, and an acoustic wave detector 25 as a sound wave detecting means to detect a sound wave discharged from a living body subject part 97 as the subject irradiated by the intensity-modulated light 1, that is a photoacoustic signal 3, and an acoustic wave 2 penetrating a living body subject part 97 from the acoustic wave generator 24.COPYRIGHT: (C)2010,JPO&INPIT【課題】非侵襲な成分濃度測定装置および成分濃度測定装置制御方法を提供することを目的とする。【解決手段】本発明に係る血液成分濃度測定装置は、一定周波数で強度変調された強度変調光1を出射する光発生手段、光変調手段及び光出射手段としての励起用光源23と、音響波2を出力する音響波発生器24と、強度変調光1を照射された被検体としての生体被検部97から放射される音波、すなわち光音響信号3及び音響波発生器24から生体被検部97を透過する音響波2を検出する音波検出手段としての音響波検出器25と、を備える。【選択図】図34
