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公开(公告)号：US3945099A
公开(公告)日：1976-03-23
申请号：US584489
申请日：1975-06-06
申请人： Robert Kansy
发明人： Robert Kansy
摘要： A ferroelectric surface wave transducer device comprising an unpoled ferroelectric substrate having a substantially sinusoidal poled region at a surface thereof. A metal plate electrode is disposed on the opposing surface of the substrate. In operation an A.C. voltage applied across the two electrodes gives rise to a surface elastic wave in the substrate. Also disclosed is a method of producing a surface wave transducer of the type described. A pair of interdigitated metal electrodes are applied to a surface of an unpoled ferroelectric substrate. A poling potential is applied between the electrodes, preferably while the substrate is heated. The interdigitated electrodes are then removed and a metal plate electrode is applied over the region where the interdigitated electrodes had been. Finally, another metal electrode is applied to the opposite surface of the substrate. In a preferred embodiment of the invention the interdigitated electrodes are in the form of a moveable fixture. The fixture is moved into contact with an unpoled substrate of ferroelectric material and, after the poling potential is applied, it is moved out of contact with the substrate. In this manner the fixture can be used repeatedly to selectively pole ferroelectric substrates upon which simple plate electrodes are then applied.
摘要翻译： 一种铁电表面波换能器装置，其包括在其表面具有基本正弦极化区域的未被压制的铁电基底。 金属板电极设置在基板的相对表面上。 在操作中，施加在两个电极上的交流电压在衬底中产生表面弹性波。 还公开了一种制造所述类型的表面波换能器的方法。 将一对叉指的金属电极施加到未镀层铁电衬底的表面上。 在电极之间施加极化电位，优选在衬底被加热时。 然后去除叉指电极，并且将金属板电极施加在交叉电极的区域上。 最后，将另一个金属电极施加到基板的相对表面。 在本发明的优选实施例中，叉指电极是可移动夹具的形式。 固定装置移动与未被镀的铁电材料基板接触，并且在施加极化电位之后，其移动离开与基板的接触。 以这种方式，可以重复使用固定装置来选择性地极化铁电基板，然后施加简单的平板电极。
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92.发明授权Process for stable phase III potassium nitrate and articles prepared therefrom 失效稳定的III期硝酸钾及其制备的制品的方法
公开(公告)号：US3939292A
公开(公告)日：1976-02-17
申请号：US316417
申请日：1972-12-18
申请人： George A. Rohrer
发明人： George A. Rohrer
摘要： A ferroelectric Phase III potassium nitrate (KNO.sub.3) which is stable at ambient temperatures is produced in accordance herewith by crystallizing reagent grade KNO.sub.3 under vacuum and heat and, then, equilibrating the resultant to ambient conditions. This stable Phase III KNO.sub.3 which is of crystalline structure exhibits visual and optical effects when subjected to mechanical and electrical alteration of the polarization vector of the crystalline structure, thus, rendering it useful in the manufacture of transparent electrodes by interposing this crystalline material between the electrodes, and the like. Furthermore, ferroelectric thin film memory arrays can be produced herefrom.
摘要翻译： 在室温条件下稳定的铁电III型硝酸钾（KNO3）是在真空和加热下结晶试剂级KNO3，然后将其结果与环境条件相平衡的。 具有结晶结构的稳定的III相KNO 3在经受了晶体结构的偏振矢量的机械和电学改变时表现出视觉和光学效应，因此通过将这种结晶材料插入电极之间使其有用于制造透明电极 ，等等。 此外，可以从其制造铁电薄膜存储阵列。
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公开(公告)号：US3930240A
公开(公告)日：1975-12-30
申请号：US45461674
申请日：1974-03-25
申请人： ANVAR
发明人： HADNI ARMAND , THOMAS ROBERT
CPC分类号： H01G7/02 , B23K26/10 , G11C13/047
摘要： The invention relates to high-capacity memory devices permitting non-destructive reading. The memory comprises a plate made of ferroelectric material with a very thin metallized film thereon to absorb the radiation from a laser beam, and a thicker metallized film. The source allows the orientation of all the ferroelectric domains. A second source, in combination with laser scanning, permits writing into the memory device. Reading is effected by scanning with the laser and detecting the direction of current flow through a resistor 20. The device is useful in computers.
摘要翻译： 本发明涉及允许非破坏性阅读的大容量存储器件。 存储器包括由铁电材料制成的板，其上具有非常薄的金属化膜以吸收来自激光束的辐射，以及较厚的金属化膜。 该源允许所有铁电畴的取向。 与激光扫描相结合的第二个源允许写入存储器件。 通过用激光扫描并检测通过电阻器20的电流的方向来实现读取。该装置在计算机中是有用的。
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公开(公告)号：US3924324A
公开(公告)日：1975-12-09
申请号：US48511274
申请日：1974-07-02
申请人： SONY CORP
发明人： KODERA YOICHI
CPC分类号： H01G7/02 , H01G7/023 , Y10T29/49002
摘要： A method of making an electret by annealing a corona charged dielectric film on a metal plate is disclosed.
摘要翻译： 公开了一种通过在金属板上退火电晕电荷介电膜来制造驻极体的方法。
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公开(公告)号：US3890511A
公开(公告)日：1975-06-17
申请号：US46084874
申请日：1974-04-15
申请人： GTE LABORATORIES INC
发明人： HAUGSJAA PAUL O , CASELLA DANIEL C
CPC分类号： H02N1/08 , H01G7/02 , H04R19/013
摘要： An apparatus is described wherein a multi-layered structure utilizing a plurality of electret assemblies provides an electrical pulse in response to a mechanical force. In one form the electret apparatus includes a plurality of spaced electrically connected conductors and electret assemblies movably mounted between the conductors. The electret assemblies are urged against one side of the conductors which then are exposed to an electric field which is reversed when the electret assemblies are driven to the other side of the conductors under a mechanical force to generate an electrical pulse. In another embodiment a spiral electret structure is formed with spring stock conductors. When the spiral structure is wound tight and then suddenly released, an electrical pulse of energy is produced.
摘要翻译： 描述了一种利用多个驻极体组件的多层结构响应于机械力提供电脉冲的装置。 在一种形式中，驻极体装置包括多个间隔开的电连接导体和可移动地安装在导体之间的驻极体组件。 驻极体组件被推压到导体的一侧，然后暴露于电场，当驻极体组件在机械力下被驱动到导体的另一侧以产生电脉冲时，电场被反转。 在另一个实施例中，螺旋驻极体结构由弹簧储备导体形成。 当螺旋结构被卷绕紧密然后突然释放时，产生电脉冲的能量。
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公开(公告)号：US3820088A
公开(公告)日：1974-06-25
申请号：US27353172
申请日：1972-07-20
申请人： ANVAR
CPC分类号： G11C13/047 , B23K26/10 , H01G7/02
摘要： The invention relates to high-capacity memory devices permitting non-destructive reading. The memory (FIG. 4 ) comprises a plate 11 made of ferroelectric material with a very thin metallized film 15 thereon to absorb the radiation from a laser beam, and a thicker metallized film 16. The source 18 allows the orientation of all the ferroelectric domains. A second source 19, in combination with laser scanning, permits writing into the memory device. Reading is effected by scanning with the laser and detecting the direction of current flow through the resistor 20. For use as memory devices in computers.
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公开(公告)号：US3748727A
公开(公告)日：1973-07-31
申请号：US3748727D
申请日：1968-07-11
申请人： SWAIN W
发明人： SWAIN W
CPC分类号： H01G7/02 , H01G7/023 , H01G7/025 , H04R19/01 , Y10T29/49002 , Y10T29/49005
摘要： Dielectric material is polarized or electrified so as to form an electret which is suited for use in a microphone or other transducer by the method which includes the steps of forming an intimate contact between the dielectric material and a conductor material and then separating these when the dielectric is cool, preferably while maintaining an electrical connection between conductors on the two surfaces of the dielectric during the separation step, without the employment of an external electric field.
摘要翻译： 介电材料被极化或通电，以形成适合用于麦克风或其他换能器的驻极体，该方法包括以下步骤：在电介质材料和导体材料之间形成紧密的接触，然后当电介质 优选地在分离步骤期间在电介质的两个表面上的导体之间保持电连接，而不需要使用外部电场。
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公开(公告)号：US3588382A
公开(公告)日：1971-06-28
申请号：US3588382D
申请日：1967-10-13
申请人： NORTHERN ELECTRIC CO
发明人： REEDYK CORNELIS W
CPC分类号： H04R1/326 , H01G7/02 , H04R19/016
摘要： AN ELECTROACOUSTIC ELECTRET TRANSDUCER WHICH EXHIBITS DIRECTIONAL RESPONSE CHARACTERISTICS RESULTING FROM AN ELECTRICAL INTERACTION BETWEEN AT LEAST TWO DISCRETE PREPOLARIZED VOLUMES WITHIN AN ELECTRET, THE VOLUMES HAVING OPPOSITELY POLED DIPOLE MOMENT VECTORS.
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99.发明授权Solid-state electrical component combining multiple capacitors with other kinds of impedance 失效固态电气元件将多个电容器与其他种类的阻抗相结合
公开(公告)号：US3398326A
公开(公告)日：1968-08-20
申请号：US48254465
申请日：1965-08-25
申请人： VITRAMON INC
发明人： ROBERT SWART , IRVING BERLIN
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