Ultrasonic probe

Abstract

Abstract PURPOSE:To reduce the electric input impedance to improve transmission and reception characteristics by sticking a plate material, which has the same acoustic impedance as a piezoelectric ceramic plate, to the surface opposite to an ultrasonic transmitting and receiving surface through an electrode. CONSTITUTION:In a piezoelectric element, electrodes 3 and 3' are formed on both surfaces of a piezoelectric ceramic plate 1, and the thickness oscillation is utilized. A plate material 2 is stuck to the surface opposite to the ultrasonic transmitting and receiving surface of this piezoelectric element through the electrode 3'. The acoustic impedance of the plate material 2 is equalized substantially to that of the ceramic plate 1.

Inventors

• 👤 Shiro Saito
• 👤 斉藤　史郎
• 👤 Hiroki Honda
• 👤 博樹 本田
• 👤 Mamoru Izumi
• 👤 守 泉
• 👤 Shuji Suzuki
• 👤 鈴木　修二

Bibliographic Details