| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a biological signal sensor which can measure weak biological signals including heart sounds and pulse waves with high accuracy, and which is also portable and therefore can easily measure weak biological signals at any place including a visiting place.SOLUTION: A biological signal sensor A is a biological signal sensor for detecting biological signals of a subject, and includes a piezoelectric sensor 1 and a buffer layer 5 integrally layered on one surface of the piezoelectric sensor 1.</p> |
