BIOLOGICAL SIGNAL DETECTING APPARATUS

PROBLEM TO BE SOLVED: To provide a biological signal detecting apparatus, detecting a biological signal with better accuracy without any load on a living body as compared with the case of disposing a sensor directly on a living body holding part. SOLUTION: This biological signal detecting apparatus includes: a living body holding part 4 for holding a living body; a base for placing the living body holding part 4; a pressure transmitting part 1 having flexibility to receive a pressure change caused by the living body; a sensor part 2 fitted to the pressure transmitting part 1 for detecting a received pressure change; and a biological signal detecting part for detecting a biological signal from the output signal of the sensor part 2, wherein the pressure transmitting part 1 is disposed in a space up to the living body holding part 4 or the base 5 with a gap. Thus, the displacement of the sensor part 2 caused by the living body is not limited, so that the sensor part 2 detects the pressure change propagated from the living body holding part 4 with better accuracy. COPYRIGHT: (C)2007,JPO&INPIT