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1. 发明授权

US08228657B2 Frequency-addressable apparatus and methods for actuation of liquids 有权
标题翻译：用于致动液体的可寻址地址的设备和方法
公开(公告)号：US08228657B2
公开(公告)日：2012-07-24
申请号：US12015167
申请日：2008-01-16
申请人： Thomas B. Jones , Weiqiang Wang , Adrian G. Bailey
发明人： Thomas B. Jones , Weiqiang Wang , Adrian G. Bailey
IPC分类号： H01T23/00
CPC分类号： G02B6/3538 , B01L3/0268 , B01L3/5025 , B01L3/50273 , B01L2300/0829 , B01L2400/0406 , B01L2400/0427 , G02B26/005
摘要： Embodiments of the invention are directed to apparatus, methods, and applications involving the actuation of a semi-insulative working fluid by electromechanical forces based on electrowetting-on-dielectric (EWOD) and liquid dielectrophoresis (liquid DEP) mechanisms that are controlled by the frequency, but not the magnitude, of an AC voltage (i.e., ‘frequency-addressable). In the various apparatus embodiments of the invention, a single, frequency-addressable electrode pair includes at least one electrode that has a spatially-varying dielectric coating thickness and thus a spatially-varying electrode gap wherein at least a portion of which a volume of a working fluid can stably reside under no influence of an applied voltage. In an exemplary aspect, a frequency-addressable, bistable apparatus includes at least one wider gap and one narrower gap associated, respectively, with a thicker and a thinner dielectric coating thickness of the electrode(s). The working fluid resides in only one of the at least two gap regions only under the influence of capillary force. A brief burst of AC voltage at a selected high frequency or low frequency will move the liquid from one gap region to another (and back) by one of an EWOD-based and a DEP-based force. In an alternative aspect, an analog apparatus has a continuous, spatially-varying electrode gap in which the dielectric coating thickness on the electrodes varies smoothly in an inverse manner. Various applications to a display device, fiber optic coupler and attenuator, controlled liquid volume dispensers, spotting arrays, well plate apparatus, and others are presented, along with control methods.
摘要翻译：本发明的实施例涉及通过基于电润湿介电（EWOD）和液体介电电泳（液体DEP）机理的机电力致动半绝缘工作流体的装置，方法和应用，其由频率但不是交流电压的大小（即“可频率寻址”）。在本发明的各种装置实施例中，单个可频率寻址的电极对包括至少一个电极，其具有空间变化的电介质涂层厚度，因此具有空间变化的电极间隙，其中至少一部分体积的工作流体可以稳定地驻留在施加电压的任何影响下。在示例性方面，可频率寻址的双稳态装置包括分别与电极的较厚和更薄的电介质涂层厚度相关联的至少一个更宽的间隙和一个较窄的间隙。工作流体仅在毛细管力的影响下仅驻留在至少两个间隙区域中的一个中。在选定的高频或低频下的短暂交流电压将通过基于EWOD和基于DEP的力之一将液体从一个间隙区域移动到另一个间隙区域（和后面）。在替代方面，模拟装置具有连续的，空间上可变的电极间隙，其中电极上的电介质涂层厚度以相反的方式平滑地变化。提出了各种应用于显示装置，光纤耦合器和衰减器，受控液体分配器，点阵列，孔板装置等，以及控制方法。

2. 发明申请

US20080169195A1 Frequency-addressable Apparatus and Methods for Actuation of Liquids 有权
标题翻译：频率寻址装置和液体驱动方法
公开(公告)号：US20080169195A1
公开(公告)日：2008-07-17
申请号：US12015167
申请日：2008-01-16
申请人： Thomas B. Jones , Weiqiang Wang , Adrian G. Bailey
发明人： Thomas B. Jones , Weiqiang Wang , Adrian G. Bailey
IPC分类号： B01J19/08 , G02B6/42
CPC分类号： G02B6/3538 , B01L3/0268 , B01L3/5025 , B01L3/50273 , B01L2300/0829 , B01L2400/0406 , B01L2400/0427 , G02B26/005
摘要： Embodiments of the invention are directed to apparatus, methods, and applications involving the actuation of a semi-insulative working fluid by electromechanical forces based on electrowetting-on-dielectric (EWOD) and liquid dielectrophoresis (liquid DEP) mechanisms that are controlled by the frequency, but not the magnitude, of an AC voltage (i.e., ‘frequency-addressable). In the various apparatus embodiments of the invention, a single, frequency-addressable electrode pair includes at least one electrode that has a spatially-varying dielectric coating thickness and thus a spatially-varying electrode gap wherein at least a portion of which a volume of a working fluid can stably reside under no influence of an applied voltage. In an exemplary aspect, a frequency-addressable, bistable apparatus includes at least one wider gap and one narrower gap associated, respectively, with a thicker and a thinner dielectric coating thickness of the electrode(s). The working fluid resides in only one of the at least two gap regions only under the influence of capillary force. A brief burst of AC voltage at a selected high frequency or low frequency will move the liquid from one gap region to another (and back) by one of an EWOD-based and a DEP-based force. In an alternative aspect, an analog apparatus has a continuous, spatially-varying electrode gap in which the dielectric coating thickness on the electrodes varies smoothly in an inverse manner. Various applications to a display device, fiber optic coupler and attenuator, controlled liquid volume dispensers, spotting arrays, well plate apparatus, and others are presented, along with control methods.
摘要翻译：本发明的实施例涉及通过基于电润湿介电（EWOD）和液体介电电泳（液体DEP）机理的机电力致动半绝缘工作流体的装置，方法和应用，其由频率但不是交流电压的大小（即“可频率寻址”）。在本发明的各种装置实施例中，单个可频率寻址的电极对包括至少一个电极，其具有空间变化的电介质涂层厚度，因此具有空间变化的电极间隙，其中至少一部分体积的工作流体可以稳定地驻留在施加电压的任何影响下。在示例性方面，可频率寻址的双稳态装置包括分别与电极的较厚和更薄的电介质涂层厚度相关联的至少一个更宽的间隙和一个较窄的间隙。工作流体仅在毛细管力的影响下仅驻留在至少两个间隙区域中的一个中。在选定的高频或低频下的短暂交流电压将通过基于EWOD和基于DEP的力之一将液体从一个间隙区域移动到另一个间隙区域（和后面）。在替代方面，模拟装置具有连续的，空间上可变的电极间隙，其中电极上的电介质涂层厚度以相反的方式平滑地变化。提出了各种应用于显示装置，光纤耦合器和衰减器，受控液体分配器，点阵列，孔板装置等，以及控制方法。

3. 发明授权

US6136174A Compact electrostatic coalescer 失效
标题翻译：紧凑型静电聚结器
公开(公告)号：US6136174A
公开(公告)日：2000-10-24
申请号：US90060
申请日：1998-06-03
申请人： J. Patrick Berry , Stewart J. Mulvey , Adrian G. Bailey , Martin T. Thew , Trevor J. Williams , Nicholas J. Wayth , Olav Urdahl
发明人： J. Patrick Berry , Stewart J. Mulvey , Adrian G. Bailey , Martin T. Thew , Trevor J. Williams , Nicholas J. Wayth , Olav Urdahl
IPC分类号： B01D17/04 , B03C5/02 , C10G33/02
CPC分类号： B03C5/02 , B01D17/045
摘要： A compact device for coalescing finely dispersed droplets of a conductive fluid emulsified in a stream of nonconductive fluid by the use of a high intensity electric field acting on the emulsion as it flows through a narrow flow gap under non-laminar flow conditions. The emulsion is introduced into the top of a vertically mounted cylindrical vessel or shell, and flows through one or more narrow, annular flow gaps formed between one or more electrodes, or an internal wall of the device. The broken emulsion is discharged from the bottom of the vessel, after having a short residence time in the high-intensity electrostatic field. The flow of the emulsion in the one or all of the narrow, annular flow gaps is non-laminar to provide substantially smaller equipment size, even with emulsions having high water content therein.
摘要翻译：一种紧凑的装置，用于通过在非层流条件下流过狭窄的流动间隙时，通过使用作用在乳剂上的高强度电场，将在非导电流体流中乳化的导电流体的精细分散的液滴聚结。将乳液引入垂直安装的圆柱形容器或壳体的顶部，并且流过形成在一个或多个电极或该装置的内壁之间的一个或多个窄的环形流动间隙。在高强度静电场停留时间短之后，破碎的乳液从容器的底部排出。在一个或所有窄的环形流动间隙中的乳液的流动是非层流的，即使在其中具有高含水量的乳液也能提供显着更小的设备尺寸。

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