PROBLEM TO BE SOLVED: To provide a device for measuring pulse waves capable of determining the connection/installation of an outside pulse wave sensor connectable to a pulse wave measuring device body without needing a special mechanism.SOLUTION: The device for measuring pulse waves includes the outside pulse wave sensor constituted of a light emitting element and a light receiving element and attachable and detachable to the pulse wave measuring device body, a light emitting element control section switching the switching ON and OFF of the light emitting element, a light receiving element control section switching the switching ON and OFF of the light receiving element, the light receiving element control section and the light emitting element control section switch on the light receiving element and the light emitting element respectively, and the device has an outside pulse wave sensor connection determining section determining whether or not the outside pulse wave sensor is connected to the device for measuring pulse wave based on the reaction of the light receiving element thereafter, the measurement of the pulse wave is started in the case where the outside pulse wave sensor connection determining section determines that the outside pulse wave sensor is connected.COPYRIGHT: (C)2009,JPO&INPIT【課題】脈波計測装置本体に接続可能な外部脈波センサの接続/装着の判定を、特段の機構を必要とせずに行える脈波計測装置を提供する。【解決手段】発光素子と受光素子で構成され、脈波計測装置本体に着脱可能な外部脈波センサと、発光素子のON、OFFを切り替える発光素子制御部と、受光素子のON、OFFを切り替える受光素子制御部と、受光素子制御部、発光素子制御部はそれぞれ受光素子、発光素子をONにし、その後の受光素子の応答をもとに外部脈波センサが脈波計測装置に接続されているかどうかを判定する外部脈波センサ接続判定部を具備し、外部脈波センサ接続判定部が外部脈波センサが接続されていると判断した場合に脈波の計測を開始する。【選択図】図2