公开(公告)号：US5303030A

公开(公告)日：1994-04-12

申请号：US801153

申请日：1991-12-02

申请人： Bernard M. Abraham ,  John B. Ketterson ,  Thomas M. Bohanon ,  John M. Mikrut

发明人： Bernard M. Abraham ,  John B. Ketterson ,  Thomas M. Bohanon ,  John M. Mikrut

IPC分类号： G01N13/02 ,  G01B9/02

CPC分类号： G01N13/02

摘要： A non-contact method and apparatus for measuring and monitoring the surface of a fluid using fiber optics and interferometric detection to permit measurement mechanical characteristics' fluid surfaces. The apparatus employs an alternating electric field gradient for generating a capillary wave on the surface of the fluid. A fiber optic coupler and optical fiber directs a portion of a laser beam onto the surface of the fluid, another portion of the laser beam onto the photo sensor, and directs light reflected from the surface of the fluid onto the photo sensor. The output of the photo sensor is processed and coupled to a phase sensitive detector to permit measurement of phase shift between the drive signal creating the capillary wave and the detected signal. This phase shift information is then used to determine mechanical properties of the fluid surface such as surface tension, surface elasticity, and surface inhomogeneity. The resulting test structure is easily made compact, portable, and easy to align and use.

摘要翻译： 一种用于使用光纤和干涉检测来测量和监测流体表面的非接触方法和装置，以允许测量机械特性的流体表面。 该装置采用交变电场梯度以在流体的表面上产生毛细管波。 光纤耦合器和光纤将激光束的一部分引导到流体的表面上，将激光束的另一部分引导到光传感器上，并将从流体表面反射的光引导到光传感器上。 光传感器的输出被处理并耦合到相敏检测器，以允许测量产生毛细管波的驱动信号和检测到的信号之间的相移。 然后使用该相移信息来确定流体表面的机械性能，例如表面张力，表面弹性和表面不均匀性。 所得到的测试结构容易制造紧凑，便于携带并且易于对准和使用。

公开(公告)号：US06220549B1

公开(公告)日：2001-04-24

申请号：US09100307

申请日：1998-06-19

申请人： Stanley I. Tsunoda ,  Thomas M. Bohanon ,  Mervyn H. Horner ,  Lawrence D. Woolf

发明人： Stanley I. Tsunoda ,  Thomas M. Bohanon ,  Mervyn H. Horner ,  Lawrence D. Woolf

IPC分类号： B64C2100

CPC分类号： B64C23/005 ,  B64C2230/12 ,  Y02T50/166 ,  Y02T70/121 ,  Y02T70/123 ,  Y10T29/49002 ,  Y10T29/49117

摘要： Improved methods and techniques for fabricating a panel of control cells, or a “control panel”, useful in various electromagnetic turbulence control (EMTC) applications includes a layered structure which includes three main components or layers: a metal substrate or backing plate having a high magnetic permeability; a ribbed magnetic structure attached to the metal substrate; and an electrode board bonded to the ribs of the magnetic structure. The ribbed magnetic structure is realized, in one embodiment, by a series of rare earth permanent magnets placed side-by-side using a bowed tool to create permanent magnet columns. The magnet columns thus formed are precisely positioned and glued to the substrate or backing plate so as to form parallel magnetic ribs. An electrode board, similar to a printed circuit board, is then bonded to the ribs of the magnet columns, e.g., so that a back side of such electrode board rests on top of the magnetic columns or ribs. The electrode board includes a matrix of electrodes formed on its front surface. The boards are constructed in such a way that the electrodes are protected from exposure to corrosive elements. Electrical access to the electrodes is made from the back surface of the electrode board and, via access holes provided through the backing plate, from behind the backing plate.

摘要翻译： 用于制造用于各种电磁湍流控制（EMTC）应用的控制单元面板或“控制面板”的改进方法和技术包括包括三个主要部件或层的分层结构：金属基板或具有高的 磁导率; 连接到金属基底的肋状磁结构; 和与该磁性结构的肋接合的电极板。 在一个实施例中，通过使用弓形工具并排设置的一系列稀土永磁体来实现肋状磁结构以产生永磁体柱。 这样形成的磁体柱精确地定位并粘合到基板或背板上，以便形成平行的磁肋。 然后，将类似于印刷电路板的电极板结合到磁体柱的肋，例如，使得这种电极板的背面搁置在磁性柱或肋的顶部上。 电极板包括在其前表面上形成的电极矩阵。 这些板被构造成使得电极被保护以免暴露于腐蚀性元件。 从电极板的后表面和通过背板提供的通孔从背板的后面形成电接触电极。