| 摘要 |
The present invention relates to an apparatus for converting a mechanical force into an electric signal, the apparatus including a piezoelectric disk crystal (1), connecting electrode layers (2,3) being disposed on opposite sides of the disk-shaped crystal (1), the electrode layer (3) on the one side being divided into a transmitter electrode layer (6) and a ground or o-electrode layer (5), and the electrode layer (2) on the opposite side being divided into a receiver electrode layer (7) and a ground or o-electrode layer (8). <IMAGE> |
