| 摘要 |
PROBLEM TO BE SOLVED: To provide a transmission and reception element of an ultrasonic wave that can be made compact.SOLUTION: A transmission and reception element 1 of an ultrasonic wave includes: a tabular piezoelectric element 10, whose planar shape is a rectangle; a vibration amplifying means part 20, fixed at a first surface 11 side of the tabular piezoelectric element 10, composed of a compact whose planar shape is a rectangle; and a space part 30, penetrating in a width direction.SELECTED DRAWING: Figure 1 |
