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    Piezo-electric transducer having electrodes that adhere well both to ceramic as well as to plastics
    1.
    发明授权
    Piezo-electric transducer having electrodes that adhere well both to ceramic as well as to plastics 失效
    压电式换能器具有能很好地粘附到陶瓷以及塑料上的电极

    公开(公告)号：US4914565A

    公开(公告)日：1990-04-03

    申请号：US187337

    申请日：1988-04-28

    申请人： Manfred Schnoeller ,  Jutta Mohaupt ,  Wolfram Wersing ,  Karl Lubitz

    发明人： Manfred Schnoeller ,  Jutta Mohaupt ,  Wolfram Wersing ,  Karl Lubitz

    IPC分类号： C08G61/12 ,  C08G61/10 ,  C08G73/00 ,  H01L41/047 ,  H01L41/29 ,  H04R17/00

    CPC分类号： H01L41/29 ,  H01L41/0478

    摘要： The invention is directed to a piezo-electric transducer having electrodes that adhere well both to ceramic as well as to plastics and that are composed of intrinsically conductive plastic. The invention is also directed to a method for the manufacture thereof. A conductive polymer layer is produced on the surface of a piezo-ceramic component by chemical or anodic oxidation of a monomer. The monomers are selected from the class of 5-member heterocycles containing sulfur or nitrogen as heteroatom, or aniline, azuline, or derivatives of the said compounds. The components provided with the economical electrodes can be advantageously composed to form sandwich-like transducers having plastic intermediate layers that exhibit good electro-acoustical properties.

    摘要翻译： 本发明涉及一种压电换能器，其具有能够很好地粘附在陶瓷以及塑料上并由本体导电塑料组成的电极的压电换能器。 本发明还涉及其制造方法。 通过单体的化学或阳极氧化在压电陶瓷组件的表面上产生导电聚合物层。 单体选自含有硫或氮作为杂原子的5-元杂环，或苯胺，薁或所述化合物的衍生物。 提供有经济电极的部件可以有利地组成形成具有表现出良好电声学特性的塑料中间层的夹心状换能器。

    Method for the manufacture of an ultrasonics antenna array
    2.
    发明授权
    Method for the manufacture of an ultrasonics antenna array 失效
    制造超声波天线阵列的方法

    公开(公告)号：US4617707A

    公开(公告)日：1986-10-21

    申请号：US773877

    申请日：1985-09-09

    申请人： Jutta Mohaupt ,  Karl Lubitz ,  Manfred Schnoeller ,  Wolfram Wersing

    发明人： Jutta Mohaupt ,  Karl Lubitz ,  Manfred Schnoeller ,  Wolfram Wersing

    IPC分类号： H04R17/00 ,  B06B1/06 ,  G10K11/34 ,  H01L41/37 ,  H01L41/22

    CPC分类号： B06B1/0622 ,  B32B38/0032 ,  H01L41/37 ,  Y10T29/42 ,  Y10T29/49812

    摘要： A method for the manufacture of a linear or annular ultrasonics antenna array for the megahertz range, which consists in providing a laminate of alternating layers of unsintered ceramic and spacing layers, the spacing layers being composed of a filler material which is heat fugitive at the sintering temperature of the ceramic, the spacing material also including refractory grains distributed therein of a size which corresponds to the spacing desired between the ceramic layers, sintering the laminate to thereby liberate the filler material and leave voids between the refractory grains, impregnating the resulting laminate with a polymerizable resin to bond the sintered ceramic layers together, and separating the resulting laminate into individual transducer elements.

    摘要翻译： 一种用于制造用于兆赫兹范围的线性或环形超声波天线阵列的方法，其包括提供未烧结陶瓷和间隔层的交替层的叠层，所述间隔层由在烧结时散热的填充材料构成 陶瓷的温度，间隔材料还包括分布在其中的耐火材料颗粒，其尺寸对应于陶瓷层之间所需的间距，烧结层压体，从而释放填料并在空穴之间留下耐火材料，将所得层压板浸渍在 将烧结的陶瓷层接合在一起的可聚合树脂，并将得到的层压体分离成各个换能器元件。

    Electrode for piezoelectric composites
    3.
    发明授权
    Electrode for piezoelectric composites 失效
    压电复合材料用电极

    公开(公告)号：US4900972A

    公开(公告)日：1990-02-13

    申请号：US213794

    申请日：1988-06-30

    申请人： Wolfram Wersing ,  Manfred Schnoeller ,  Karl Lubitz ,  Jutta Mohaupt

    发明人： Wolfram Wersing ,  Manfred Schnoeller ,  Karl Lubitz ,  Jutta Mohaupt

    IPC分类号： H04R17/00 ,  H01L41/09 ,  H01L41/29 ,  H03H9/13

    CPC分类号： H03H9/131 ,  H01L41/0477 ,  H01L41/0478 ,  H01L41/29 ,  Y10S310/80

    摘要： The invention provides an electrode for piezoelectric composites having high acoustic attenuation. The electrode is composed of a first layer having high elasticity and lower conductivity and of a second layer lying thereabove that has higher conductivity. The invention also provides a method for the manufacture thereof. The first layer is an intrinsically conductive plastic directly deposited on the ceramic whose polymerization is initiated by chemical or anodic oxidation of the corresponding monomers. The second layer is fashioned of adequately conductive metal and is preferably first sputtered on or vapor-deposited in a thinner layer and is then subsequently electrolytically reinforced. Piezoelectric composites that exhibit high acoustic attenation and, thus, prevent an acoustic crosstalk between the individual transducer elements can be manufactured from piezoelectric ceramic lamina or foils provided with such electrodes. Such composites also withstand higher mechanical distortion (for example, due to thermal expansion), even if the ceramic is highly porous.

    摘要翻译： 本发明提供一种具有高声衰减的压电复合材料的电极。 电极由具有高弹性和低导电性的第一层和位于其上的具有较高导电性的第二层组成。 本发明还提供了其制造方法。 第一层是直接沉积在陶瓷上的固有导电的塑料，其聚合通过相应单体的化学或阳极氧化引发。 第二层由适当导电的金属制成，并且优选首先溅射在较薄层中或气相沉积在较薄层中，然后随后进行电解强化。 表现出高声学衰减并因此防止各个换能器元件之间的声学​​串扰的压电复合材料可以由具有这种电极的压电陶瓷层或箔制造。 这种复合材料也承受较高的机械变形（例如，由于热膨胀），即使陶瓷是高度多孔的。

    Porous piezoelectric material and method for making it
    5.
    发明授权
    Porous piezoelectric material and method for making it 失效
    多孔压电材料及其制造方法

    公开(公告)号：US4751013A

    公开(公告)日：1988-06-14

    申请号：US759561

    申请日：1985-07-26

    申请人： Hans Kaarmann ,  Karl Lubitz ,  Jutta Mohaupt ,  Martina Vogt ,  Wolfram Wersing

    发明人： Hans Kaarmann ,  Karl Lubitz ,  Jutta Mohaupt ,  Martina Vogt ,  Wolfram Wersing

    IPC分类号： C04B38/06 ,  H01L41/37 ,  H01L41/43 ,  C04B35/00 ,  B28B1/26

    CPC分类号： C04B38/067 ,  H01L41/37 ,  H01L41/43 ,  C04B2111/00844

    摘要： A piezoelectric ceramic powder is, together with a binder, processed to a granulate. This granulate is mixed with a pearl polymer to a mixture. The mixture is pressed to a suitable shape, and then in a first firing step the binder and the pearl polymer are fired out. Preferably the first firing process is followed by a second firing step for sintering. Thereafter mechanical fabrication may take place, to give the end product its shape. The firing out of the pearl polymer results in a porous piezoelectric ceramic, with which, when used in an ultrasonic transducer, a high transducer effectiveness, sharp ultrasonic pulses with little edge radiation as well as a good electric and acoustic adaptation can be achieved.

    摘要翻译： 压电陶瓷粉末与粘合剂一起加工成颗粒。 将该颗粒与珍珠聚合物混合到混合物中。 将混合物压制成合适的形状，然后在第一烧制步骤中烧结粘合剂和珍珠聚合物。 优选地，第一烧制工艺之后是用于烧结的第二烧成步骤。 此后可以进行机械制造，以给最终产品形状。 珍珠聚合物的烧制产生了一种多孔压电陶瓷，当用于超声波换能器时，其具有高的换能器效率，可以实现具有较小边缘辐射的尖锐超声波脉冲以及良好的电气和声学适应性。

    Composite ultrasound transducer and method for manufacturing a structured component therefor of piezoelectric ceramic
    6.
    发明授权
    Composite ultrasound transducer and method for manufacturing a structured component therefor of piezoelectric ceramic 失效
    复合超声波传感器及其制造压电陶瓷结构构件的方法

    公开(公告)号：US5164920A

    公开(公告)日：1992-11-17

    申请号：US706354

    申请日：1991-05-28

    申请人： Ulrich Bast ,  Hans Kaarmann ,  Karl Lubitz ,  Martina Vogt ,  Wolfram Wersing ,  Dieter Cramer

    发明人： Ulrich Bast ,  Hans Kaarmann ,  Karl Lubitz ,  Martina Vogt ,  Wolfram Wersing ,  Dieter Cramer

    IPC分类号： A61B8/00 ,  B06B1/06 ,  C04B38/00 ,  G01H11/08 ,  G01N29/24 ,  H01L41/08 ,  H01L41/22 ,  H04R17/00

    CPC分类号： H01L41/37 ,  A61B8/4494 ,  B06B1/0622 ,  G01N29/245 ,  G01N2291/0421 ,  G01N2291/0422

    摘要： A composite ultrasound transducer (array) contains piezoelectric ceramic transducer elements which radiate substantially in the longitudinal direction, and are embedded in a polymer matrix. The transducer elements have such a geometrical structure, and are arranged relative to each other, so that the development of oscillation modes perpendicular to the longitudinal direction of the transducer elements is suppressed. A method for manufacturing the composite ultrasound transducer includes the steps of filling a plastic form, having a "negative" of the desired shape of the transducer elements, with ceramic slurry, and pyrolyzing the plastic form after the slurry dries therein. The resulting voids between the hardened ceramic elements are filled with polymer to create the overall composite transducer. The transducer elements can thus be given an arbitrary shape and arrangement, such as hexagonal or irregular square structures, having a trapezoidal cross-section in planes parallel to the longitudinal axis of the transducer elements.

    摘要翻译： 复合超声波换能器（阵列）包含基本上沿纵向辐射的压电陶瓷换能器元件，并嵌入聚合物基体中。 换能器元件具有这样的几何结构，并且相对于彼此布置，从而抑制了与换能器元件的纵向方向垂直的振荡模式的发展。 制造复合超声波换能器的方法包括以下步骤：用陶瓷浆料填充具有所需形状的换能器元件的“负极”的塑料形式，并且在浆料在其中干燥之后热塑塑料形式。 所形成的硬化陶瓷元件之间的空隙用聚合物填充以形成整个复合传感器。 因此，换能器元件可以具有任意形状和布置，例如六边形或不规则正方形结构，在平行于换能器元件的纵向轴线的平面中具有梯形横截面。

    Ultrasound array having trapezoidal oscillator elements and a method and apparatus for the manufacture thereof
    7.
    发明授权
    Ultrasound array having trapezoidal oscillator elements and a method and apparatus for the manufacture thereof 失效
    具有梯形振荡器元件的超声阵列及其制造方法和装置

    公开(公告)号：US5045746A

    公开(公告)日：1991-09-03

    申请号：US484352

    申请日：1990-02-22

    申请人： Wolfram Wersing ,  Karl Lubitz ,  Reinhard Lerch ,  Hans Kaarmann ,  Martina Vogt

    发明人： Wolfram Wersing ,  Karl Lubitz ,  Reinhard Lerch ,  Hans Kaarmann ,  Martina Vogt

    IPC分类号： G01N29/24 ,  A61B8/00 ,  B06B1/06 ,  H04R17/00

    CPC分类号： B06B1/0648 ,  B06B1/0622

    摘要： An ultrasound array has a number of oscillator elements arranged side-by-side, each oscillator element having a trapezoidal cross-section. The oscillator elements are separated from each other by incisions having non-parallel walls, which are co-planar with surfaces of the piezoelectric material comprising the oscillator element. The incisions terminate in a damping member, to which all of the oscillator elements are attached. The incisions are produced with an excimer laser whose laser beam is focused onto a prepared layered material, with the incisions proceeding along a line.

    摘要翻译： 超声阵列具有并排布置的多个振荡器元件，每个振荡器元件具有梯形横截面。 振荡器元件通过具有非平行壁的切口彼此分离，所述切口与包括振荡器元件的压电材料的表面共面。 切口终止于阻尼构件，所有振荡器元件都连接到该阻尼构件上。 切口用准分子激光器制成，其激光束聚焦到制备的层状材料上，其中切口沿着一条线进行。

    Device and method for detecting a substance of a liquid
    8.
    发明授权
    Device and method for detecting a substance of a liquid 有权
    用于检测液体物质的装置和方法

    公开(公告)号：US07468608B2

    公开(公告)日：2008-12-23

    申请号：US10521736

    申请日：2003-07-03

    申请人： Hans-Dieter Feucht ,  Reinhard Gabl ,  Wolfram Wersing ,  Heinrich Zeininger

    发明人： Hans-Dieter Feucht ,  Reinhard Gabl ,  Wolfram Wersing ,  Heinrich Zeininger

    IPC分类号： G01R27/04 ,  G01N33/20 ,  G01N11/16

    CPC分类号： G01N33/54373 ,  G01N29/022 ,  G01N29/036 ,  G01N2291/0255 ,  G01N2291/0256 ,  G01N2291/02809 ,  G01N2291/0422 ,  G01N2291/0426 ,  G01N2291/045

    摘要： A device for detecting at least one substance of a fluid includes at least one piezo-acoustic resonator with at least one piezo layer, an electrode arranged on the piezo-electric layer, at least one other electrode arranged on the piezo-electric layer and a surface section used for sorption of the substance of the fluid. The piezo-electric layer, the electrodes and the surface section are disposed in such a way that electric control of the electrodes leads to an oscillation of the resonator at a resonance frequency which depends upon the amount of the substance which is sorbed on the surface section. The thickness of the pioelectric layer is in the region of 0.5 to 20 μm and the resonance frequency of the oscillation ranges from 500 MHz to 2 GHz. The device is a mass sensor with a piezo-acoustic high-frequency thin film resonator.

    摘要翻译： 用于检测流体的至少一种物质的装置包括：至少一个压电声谐振器，具有至少一个压电层，布置在压电层上的电极，布置在压电层上的至少一个其它电极和 用于吸附流体物质的表面部分。 压电层，电极和表面部分以这样的方式设置，使得电极的电控制导致谐振器的振荡以共振频率取决于吸收在表面部分上的物质的量 。 皮电层的厚度在0.5〜20μm的范围内，振荡的共振频率为500MHz〜2GHz。 该装置是具有压电声高频薄膜谐振器的质量传感器。