PIEZOELECTRIC SENSOR

摘要

PROBLEM TO BE SOLVED: To provide a piezoelectric sensor capable of performing position detection and load detection in the piezoelectric sensor.SOLUTION: A piezoelectric sensor 10 includes: a piezoelectric sheet 11 that has flexibility and generates electric charge when applied with load; a bent member 14 that is disposed on a first main surface of the piezoelectric sheet 11 and that bends the piezoelectric sheet 11 when load is applied to the piezoelectric sheet 11 to form convex and concave surfaces on the piezoelectric sheet 11; a first electrode 12 disposed on the convex surface on the first main surface; and a second electrode 13 disposed on the convex surface of a second main surface on a side opposite to the first main surface of the piezoelectric sheet.