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    • 1. 发明申请
    • MULTI-ELEMENT PIEZOELECTRIC TRANSDUCERS
    • 多元素压电传感器
    • WO2009112995A2
    • 2009-09-17
    • PCT/IB2009/050953
    • 2009-03-08
    • ULTRASHAPE LTD.NUDELMAN, IgorRYBYANETS, Andrey
    • NUDELMAN, IgorRYBYANETS, Andrey
    • H01L41/04H01L41/047H01L41/22
    • B06B1/0637Y10T29/42
    • A piezoelectric transducer formed of a body of piezoelectric material having first and second opposed sides and first and second electrically conductive layers on the first and second sides respectively of the piezoelectric body, wherein the piezoelectric body and the electrically conductive layers are so constructed that they form a plurality of separate adjacent series- connected transducer elements. A method of manufacturing such a transducer is also disclosed. The piezoelectric body may have a substantially uniform direction of polarization, or alternating zones of opposite polarization. The conductive layers may be continuous or discontinuous, together forming isolated electrode pairs to define the individual transducer elements. The elements can be hard wired or connected through a switching circuit to display either circumferential or axial or other ultrasonic focal patterns, and may be connected in a parallel, rather than a series configuration. When connected in series, advantageously higher impedance can be obtained, compared to the parallel configuration.
    • 一种由压电材料体形成的压电换能器,其具有在压电体的第一和第二侧上具有第一和第二相对侧以及第一和第二导电层的压电体,其中压电体和导电层的构造使得它们形成 多个单独的相邻的串联连接的换能器元件。 还公开了制造这种换能器的方法。 压电体可以具有基本上均匀的偏振方向,或具有相反极化的交替区域。 导电层可以是连续的或不连续的,一起形成隔离的电极对以限定各个换能器元件。 元件可以通过开关电路进行硬连线或连接,以显示圆周或轴向或其他超声波焦点图案,并且可以以并联而不是串联配置连接。 当串联连接时,与并行配置相比,可以获得更高的阻抗。
    • 4. 发明申请
    • MULTI-ELEMENT PIEZOELECTRIC TRANSDUCERS
    • 多元素压电传感器
    • WO2009112995A3
    • 2009-12-23
    • PCT/IB2009050953
    • 2009-03-08
    • ULTRASHAPE LTDNUDELMAN IGORRYBYANETS ANDREY
    • NUDELMAN IGORRYBYANETS ANDREY
    • H01L41/00
    • B06B1/0637Y10T29/42
    • A piezoelectric transducer formed of a body of piezoelectric matepal having first and second opposed sides and first and second electrically conductive layers on the first and second sides respectively of the piezoelectric body, wherein the piezoelectric body and the electncally conductive layers are so constructed that they form a plurality of separate adjacent sepes connected transducer elements The piezoelectric body may have a substantially uniform direction of polarization, or alternating zones of opposite polarization The conductive layers may be continuous or discontinuous, together forming isolated electrode pairs to define the individual transducer elements The elements can be hard wired or connected through a switching circuit to display either circumferential or axial or other ultrasonic focal patterns, and may be connected in a parallel, rather than a sepes configuration When connected in series, advantageously higher impedance can be obtained, compared to the parallel configuration.
    • 一种压电传感器,其由压电材料体形成,所述压电材料体在所述压电体的第一和第二侧上具有第一和第二相对侧以及第一和第二导电层,其中所述压电体和所述电导体层被构造成使得它们形成 多个独立的相邻的隔片连接的换能器元件压电体可以具有基本上均匀的偏振方向或相反极化的交替区域。导电层可以是连续的或不连续的,一起形成隔离的电极对以限定各个换能器元件。 通过开关电路进行硬接线或连接,以显示圆周或轴向或其他超声波焦点图案,并且可以并联连接,而不是隔离结构。当串联连接时,有利地可以获得更高的阻抗,与平行 CONF iguration。