PROBLEM TO BE SOLVED: To provide a technique for improving measuring precision by stably extracting an alternating current component regardless of a measuring part in an apparatus for measuring pulse waves using a plurality of light sources.SOLUTION: A pulse wave measuring apparatus includes: a first light emitting part 211 for irradiating a measuring part for measuring pulse waves with light of a first wavelength a first A light emitting part 212 and a first B light emitting part 213 for outputting a measuring signal of a first A and the measuring signal of a first B based on the amount of received light reflected on the measuring part a second light emitting part 221 for irradiating the measuring part with the light of a second wavelength a second A light emitting part 222 and a second B light emitting part 223 for outputting the measuring signal of a second A and the measuring signal of a second B based on the amount of received light reflected on the measuring part a first amplification part 240a for outputting a first alternating current component and a second amplification part 240b for outputting a second alternating current component.COPYRIGHT: (C)2013,JPO&INPIT【課題】複数の光源を用いて脈波の測定を行う装置において、測定部位に関わらず交流成分を安定して抽出し、測定の精度を高くすることのできる技術を提供する。【解決手段】脈波測定装置は、脈波を測定する測定部位に第1の波長の光を照射する第1の発光部211と、測定部位で反射した受光量に基づく第1Aの測定信号と第1Bの測定信号とを出力する第1Aの受光部212、及び第1Bの受光部213と、測定部位に第2の波長の光を照射する第2の発光部221と、測定部位で反射した受光量に基づく第2Aの測定信号と第2Bの測定信号とを出力する第2Aの受光部222、及び第2Bの受光部223と、第1の交流成分を出力する第1の増幅部240aと、第2の交流成分を出力する第2の増幅部240bとを備える。【選択図】図2
