公开(公告)号：EP0468506A3

公开(公告)日：1993-02-03

申请号：EP91112520.1

申请日：1991-07-25

Applicant: ACOUSTIC IMAGING TECHNOLOGIES CORPORATION

Inventor： Harrison, William V. Jr. ,  Slayton, Michael Henry

IPC: B06B1/06

CPC classification number: B06B1/0622

Abstract: An ultrasonic transducer comprising:
a crossed shaped plate of piezo material; a ground electrode plate disposed on one side of the piezo material; a signal electrode plate disposed on the opposite side of the piezo material; and a plurality of grooves defining a plura lity of individual transducer elements, each element having separate signal electrode on a common side of the piezo material.

公开(公告)号：EP0468506A2

公开(公告)日：1992-01-29

申请号：EP91112520.1

申请日：1991-07-25

Applicant: ACOUSTIC IMAGING TECHNOLOGIES CORPORATION

Inventor： Harrison, William V. Jr. ,  Slayton, Michael Henry

IPC: B06B1/06

CPC classification number: B06B1/0622

Abstract: An ultrasonic transducer comprising:

a crossed shaped plate of piezo material;
a ground electrode plate disposed on one side of the piezo material;
a signal electrode plate disposed on the opposite side of the piezo material; and
a plurality of grooves defining a plura lity of individual transducer elements, each element having separate signal electrode on a common side of the piezo material.

Abstract translation: 一种超声波换能器，包括：压电材料的交叉形状的板; 设置在所述压电材料一侧的接地电极板; 设置在所述压电材料的相对侧上的信号电极板; 以及限定单个换能器元件的多个凹槽的多个凹槽，每个元件在压电材料的共同侧上具有单独的信号电极。

公开(公告)号：EP0468506B1

公开(公告)日：1996-07-10

申请号：EP91112520.1

申请日：1991-07-25

Applicant: ACOUSTIC IMAGING TECHNOLOGIES CORPORATION

Inventor： Harrison, William V. Jr. ,  Slayton, Michael Henry

IPC: B06B1/06

CPC classification number: B06B1/0622

公开(公告)号：EP0517039A1

公开(公告)日：1992-12-09

申请号：EP92108562.7

申请日：1992-05-21

Applicant: ACOUSTIC IMAGING TECHNOLOGIES CORPORATION

Inventor： Slayton, Michael Henry

IPC: H01L41/18 ,  H01L41/22

CPC classification number: H01L41/183

Abstract: A piezoelectric ceramic-epoxy composite comprising particles predominantly 1/2 λ (half wavelength) in thickness of piezoelectric ceramic and epoxy also disclosed is a method of making a piezoelectric ceramic-epoxy composite. The method comprises mixing ceramic powder with a particle size in the range of about 3/4 λ to 1-1/2 λ and, preferably, predominantly larger than 1/2 λ average particle size with non-polymerized epoxy in the proportion of 20% to 65% ceramic powder, by volume and spreading the ceramic-epoxy mixture on a flat substrate to a thickness of approximately the size of the powder particles. The mixture is then evacuated to remove air bubbles and the epoxy is cured to produce a sheet of ceramic and epoxy. The sheet is surface ground to 1/2 λ (half wavelength) of a predetermined resonant frequency.

Abstract translation: 包括压电陶瓷和环氧树脂的厚度主要为1/2λ（半波长）的颗粒的压电陶瓷 - 环氧复合材料也是制造压电陶瓷 - 环氧复合材料的方法。 该方法包括将具有约3/4λ至1-1 /2λ的范围的粒度的陶瓷粉末与优选地大于1/2λ的平均粒径的陶瓷粉末混合，其中非聚合的环氧树脂的比例为20 ％至65％的陶瓷粉末（体积）并将陶瓷 - 环氧树脂混合物铺展在平坦的基材上至约为粉末颗粒尺寸的厚度。 然后将混合物抽真空以除去气泡，并将环氧树脂固化以产生一片陶瓷和环氧树脂。 片材被表面接地至预定谐振频率的1/2λ（半波长）。