Piezoelectric element and piezoelectric sensor

A piezoelectric element (1) is provided with: a laminated body (12), which has first and second piezoelectric layers (2A, 2B) having the thickness direction thereof as the polarization direction, and an elastic layer (8) provided between the first piezoelectric layer (2A) and the second piezoelectric layer (2B); first and second terminal electrodes (5a, 5b) provided on outer surfaces of the laminated body (12); a first detection electrode (4a) provided on the positive polar surface of the first piezoelectric layer (2A); a second detection electrode (4b) provided on the negative polar surface of the first piezoelectric layer (2A); a third detection electrode (4c) provided on the positive polar surface of the second piezoelectric layer (2B); and a fourth detection electrode (4d) provided on the negative polar surface of the second piezoelectric layer (2B). The first detection electrode (4a) and the fourth detection electrode (4d) are connected to the first terminal electrode (5a), and the second detection elect