PROBLEM TO BE SOLVED: To provide a pulse wave measurement device which can increase accuracy of measurement of a pulse wave transit time.SOLUTION: A pulse wave measurement device includes: a belt attached to wind around a region to be measured； first and second pulse wave sensors which are mounted in a state to be separated from each other with respect to a width direction of the belt and detect a pulse wave in parts, that the pulse wave sensors respectively face, of arteries passing in the region to be measured； and a pressing member which can press the first and second pulse wave sensors against the region to be measured by varying pressing force. In S12, a cross-correlation coefficient between wave forms of first and second pulse wave signals is calculated by obtaining the first and second pulse wave signals respectively output by the first and second pulse wave sensors in time series. In S13, whether the cross-correlation coefficient exceeds a predetermined threshold value or not is determined by setting to vary the pressing force by the pressing member. In S15, a time difference between the first and second pulse wave signals is obtained as a pulse wave transit time by setting the pressing force by the pressing member at a value where the cross-correlation coefficient exceeds the threshold value.SELECTED DRAWING: Figure 8【課題】脈波伝播時間の測定精度を高められる脈波測定装置を提供する。【解決手段】被測定部位を取り巻いて装着されるべきベルトと、このベルトに幅方向に関して互いに離間した状態で搭載され、被測定部位を通る動脈のうちそれぞれ対向する部分の脈波を検出する第１、第２の脈波センサと、被測定部位に対して第１、第２の脈波センサを、押圧力を可変して押圧し得る押圧部材とを備える。第１、第２の脈波センサがそれぞれ時系列で出力する第１、第２の脈波信号を取得して、それらの第１、第２の脈波信号の波形間の相互相関係数を算出するＳ１２。押圧部材による押圧力を可変して設定して、相互相関係数が予め定められた閾値を超えているか否かを判断するＳ１３。押圧部材による押圧力を、相互相関係数がその閾値を超える値に設定して、第１、第２の脈波信号の間の時間差を脈波伝播時間として取得するＳ１５。【選択図】図８
