| 摘要 |
PROBLEM TO BE SOLVED: To provide a biological signal detector capable of detecting a biological signal with high sensitivity, and a wake-up device comprising the same.SOLUTION: A biological signal detector includes a bendable plate member, and a piezoelectric element which is provided on one surface of the plate member, which is brought away from the center of bending and which is bent in such a manner as to interlock with the bending of the plate member. When the plate member is bent on the basis of vibrations transmitted to the plate member from a predetermined region of the human body, the piezoelectric element is bent in such a manner as to interlock with the plate member. Thus, the piezoelectric element outputs an electric signal corresponding to the vibrations. |
