Patent ID: 8706182

Claim:
A biosignal detecting electrode which comprises a rotary part which is rotatably attached on a brace mountable on a living body and has a first side that joins to said brace and a second side opposite to said first side, a plurality of electrode terminals attached to said rotary part in such a way that they obliquely project from said second side of said rotary part, a drive mechanism configured to rotate said rotary part, a signal processing unit configured to measure an electrical resistance, which is a contact resistance of the plurality of electrode terminals, and a control unit configured to control said drive mechanism to rotate the rotary part in response to the contact resistance which is detected at said plurality of electrode terminals, wherein the signal processing unit is configured to repeatedly measure the contact resistance of the plurality of electrode terminals and the control unit is configured to repeatedly cause the drive mechanism to rotate the rotary part until the contact resistance meets a threshold.