-
公开(公告)号：EP0181506A3
公开(公告)日：1987-03-25
申请号：EP85112914
申请日：1985-10-11
CPC分类号： B06B1/0629 , G01V1/201 , H01L41/29
摘要： A flexible piezoelectric transducer assembly for producing sonar signals for transmission underwater and for detecting reflected sonar signals. The assembly includes a generally flat, flexible casing formed with a plurality of compartments, each of which is for receiving a piezoelectric element. A plurality of piezoelectric elements are disposed in each of the compartments and are coupled by way of conductors to electronic circuitry which produces electrical signals for stressing the piezoelectric elements and which processes electrical signals produced by the piezoelectric element in response to reflected sonar signals. The piezoelectric elements are spaced apart in the casing to allow flexing and bending, while also maintaining high packing density. The piezoelectric elements are also selected to have low cross-coupling characteristics.
-
公开(公告)号：EP0340674A3
公开(公告)日：1990-10-17
申请号：EP89107781.0
申请日：1989-04-28
发明人： Bromfield, George
CPC分类号： B06B1/0611 , G10K9/121 , Y10T29/42
摘要： A flextensional sonar transducer assembly includes a stack of piezoelectric elements (8) disposed along a linear axis, a plurality of electrodes (10) disposed between the elements (8), end pieces (16, 20) disposed at each end of the piezoelectric stack, with the end pieces (16, 20) having outwardly facing, generally arcuate surfaces, a band (32) of material formed into a loop to encircle the stack (8) and end pieces (16, 20), a flexural shell (36) disposed to circumscribe the band (32) of material to present a generally elliptical side cross-section, with the major axis thereof being generally coincident with the linear axis of the stack (8), and with the shell (36) being reactively coupled to the arcuate end portions of the band (32) of material so that a transverse movement of the long sides of the shell causes longitudinal compression or expansion of the elongate means and vice versa, and wedge elements (40, 44) positioned between the shell (36) and the arcuate end portions of the band (32) of material for maintaining driving contact between the shell and the end pieces.
摘要翻译： 屈曲声纳换能器组件包括沿线性轴设置的一组压电元件（8），设置在元件（8）之间的多个电极（10），设置在压电堆叠的每一端的端片（16,20） ，所述端部件（16,20）具有向外的大致弓形表面，所述端部件（16,20）形成为环形圈以包围所述堆叠（8）和端部件（16,20）的材料带（32），弯曲壳体（36） ），其被设置成围绕材料的带（32）以呈现大致椭圆形的侧横截面，其长轴大致与堆叠（8）的线性轴线重合，并且壳（36）被反应地耦合 到所述带（32）的弓形端部，使得所述壳的长边的横向运动导致所述细长装置的纵向压缩或膨胀，反之亦然，以及定位在所述壳体之间的楔形元件（40,44） （36）和b的弓形端部 和（32）用于保持壳体和端部件之间的驱动接触的材料。
-
公开(公告)号：EP0181506A2
公开(公告)日：1986-05-21
申请号：EP85112914.8
申请日：1985-10-11
CPC分类号： B06B1/0629 , G01V1/201 , H01L41/29
摘要： A flexible piezoelectric transducer assembly for producing sonar signals for transmission underwater and for detecting reflected sonar signals. The assembly includes a generally flat, flexible casing formed with a plurality of compartments, each of which is for receiving a piezoelectric element. A plurality of piezoelectric elements are disposed in each of the compartments and are coupled by way of conductors to electronic circuitry which produces electrical signals for stressing the piezoelectric elements and which processes electrical signals produced by the piezoelectric element in response to reflected sonar signals. The piezoelectric elements are spaced apart in the casing to allow flexing and bending, while also maintaining high packing density. The piezoelectric elements are also selected to have low cross-coupling characteristics.
摘要翻译： 一种用于产生用于水下传输的声纳信号并用于检测反射声纳信号的柔性压电换能器组件。 该组件包括形成有多个隔室的大致扁平的柔性外壳，每个隔室用于容纳压电元件。 多个压电元件设置在每个隔间中并且通过导体耦合到电子电路，电子电路产生用于对压电元件施加应力的电信号，并且响应于反射的声纳信号处理由压电元件产生的电信号。 在壳体中的间隔电极元件允许弯曲和弯曲，同时还保持高的堆积密度。 压电元件也被选择为具有低交叉耦合特性。
-
公开(公告)号：EP0237616A2
公开(公告)日：1987-09-23
申请号：EP86113279.3
申请日：1986-09-26
IPC分类号： G01V1/20
CPC分类号： B06B1/0629 , G01V1/201 , H01L41/257 , H01L41/29
摘要： A flexible line array transducer assembly for detecting underwater acoustical signals. The assembly includes an array of spaced-apart piezoelectric elements (4) arranged generally in a line and selected to have low cross-coupling characteristics, low sensitivity to incoherent mechanical perturbations in the directions longitudinal and lateral to the axis of the array, and high sensitivity to coherent mechanical perturbations such as acoustical signals. The elements (4) are polarized in a direction generally transverse to the array and each include opposing surface areas which are generally parallel with the linear axis of the array. Electrodes (28, 32 etc.) are disposed on the opposing surface areas of the elements and are coupled to conductors (20, 24) which carry signals produced by the piezoelectric elements (4) when the elements are stressed by acoustical signals. A porous, open-cell material (8) is disposed about the piezoelectric elements (4) as an encasement to maintain the elements in place and mechanically isolate the elements. An outer, water-tight jacket (16) encloses the open cell material and holds a fill fluid carried within the open-cell material. An electically conductive flexible sleeve (12) may be placed either about the open-cell material or about the outer jacket to shield the piezoelectric elements from electromagnetic waves.
摘要翻译： 用于检测水下声学信号的柔性线阵列换能器组件。 该组件包括一组间隔开的压电元件（4），该压电元件通常以一条线排列并被选择为具有低交叉耦合特性，对阵列轴线纵向和横向方向上的非相干机械扰动的低灵敏度以及高 对相干机械扰动（如声学信号）的敏感性。 元件（4）在大致横向于阵列的方向上极化，并且每个元件包括与阵列的线性轴线大致平行的相对表面区域。 电极（28,32等）设置在元件的相对的表面区域上，并且当元件受到声学信号的应力时，与导体（20,24）耦合，该导体承载由压电元件（4）产生的信号。 多孔的开孔材料（8）围绕压电元件（4）设置为封闭件，以将元件保持在适当位置并机械隔离元件。 外部不透水的外套（16）包围开孔材料并保持承载在开孔材料内的填充流体。 导电柔性套管（12）可以围绕开孔材料或围绕外护套放置，以屏蔽压电元件免受电磁波的影响。
-
公开(公告)号：EP0181506B1
公开(公告)日：1991-08-21
申请号：EP85112914.8
申请日：1985-10-11
CPC分类号： B06B1/0629 , G01V1/201 , H01L41/29
-
6.发明公开Flextensional sonar transducer assembly 失效Sonarwandleranordnung unter Benutzung von Biegespannungen。
公开(公告)号：EP0340674A2
公开(公告)日：1989-11-08
申请号：EP89107781.0
申请日：1989-04-28
发明人： Bromfield, George
CPC分类号： B06B1/0611 , G10K9/121 , Y10T29/42
摘要： A flextensional sonar transducer assembly includes a stack of piezoelectric elements (8) disposed along a linear axis, a plurality of electrodes (10) disposed between the elements (8), end pieces (16, 20) disposed at each end of the piezoelectric stack, with the end pieces (16, 20) having outwardly facing, generally arcuate surfaces, a band (32) of material formed into a loop to encircle the stack (8) and end pieces (16, 20), a flexural shell (36) disposed to circumscribe the band (32) of material to present a generally elliptical side cross-section, with the major axis thereof being generally coincident with the linear axis of the stack (8), and with the shell (36) being reactively coupled to the arcuate end portions of the band (32) of material so that a transverse movement of the long sides of the shell causes longitudinal compression or expansion of the elongate means and vice versa, and wedge elements (40, 44) positioned between the shell (36) and the arcuate end portions of the band (32) of material for maintaining driving contact between the shell and the end pieces.
摘要翻译： 屈曲声纳换能器组件包括沿线性轴设置的一组压电元件（8），设置在元件（8）之间的多个电极（10），设置在压电堆叠的每一端的端片（16,20） ，所述端部件（16,20）具有向外的大致弧形表面，所述端部件（16,20）形成为围绕所述堆叠（8）和端部件（16,20）的环的材料带（32），弯曲壳体（36） ），其被设置成围绕材料的带（32）以呈现大致椭圆形的侧横截面，其长轴大致与堆叠（8）的线性轴线重合，并且壳（36）被反应地耦合 到所述带（32）的弓形端部，使得所述壳的长边的横向运动导致所述细长装置的纵向压缩或膨胀，反之亦然，以及定位在所述壳体之间的楔形元件（40,44） （36）和b的弓形端部 和（32）用于保持壳体和端部件之间的驱动接触的材料。
-
公开(公告)号：EP0237616A3
公开(公告)日：1988-06-29
申请号：EP86113279
申请日：1986-09-26
IPC分类号： G01V01/20
CPC分类号： B06B1/0629 , G01V1/201 , H01L41/257 , H01L41/29
摘要： A flexible line array transducer assembly for detecting underwater acoustical signals. The assembly includes an array of spaced-apart piezoelectric elements (4) arranged generally in a line and selected to have low cross-coupling characteristics, low sensitivity to incoherent mechanical perturbations in the directions longitudinal and lateral to the axis of the array, and high sensitivity to coherent mechanical perturbations such as acoustical signals. The elements (4) are polarized in a direction generally transverse to the array and each include opposing surface areas which are generally parallel with the linear axis of the array. Electrodes (28, 32 etc.) are disposed on the opposing surface areas of the elements and are coupled to conductors (20, 24) which carry signals produced by the piezoelectric elements (4) when the elements are stressed by acoustical signals. A porous, open-cell material (8) is disposed about the piezoelectric elements (4) as an encasement to maintain the elements in place and mechanically isolate the elements. An outer, water-tight jacket (16) encloses the open cell material and holds a fill fluid carried within the open-cell material. An electically conductive flexible sleeve (12) may be placed either about the open-cell material or about the outer jacket to shield the piezoelectric elements from electromagnetic waves.
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.01 秒)
