| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electrocardiographic sensor which can efficiently sense faint signals from a heart of a driver and is preferably mounted on cars or the like. <P>SOLUTION: The sensor characteristically comprises: a first electrode 20 and a second electrode 30, which are installed on the backrest of a seat; first-step amplifiers 21 and 31, which are installed on reverse faces respectively of the first electrode 20 and the second electrode 30 and buried in the backrest of the seat; a ground electrode 40, installed on a bottom of the seat; a second-step amplifier 50, which is installed on a place other than the seat and amplifies output signals from the first-step amplifiers 21 and 31; coaxial cables 25 and 35, which connects the first-step amplifiers 21 and 31 with the second-step amplifier 50; and a cable 45 for the ground electrode, which connects the ground electrode 40 with the second-step amplifier 50. <P>COPYRIGHT: (C)2009,JPO&INPIT |
