公开(公告)号：US20150198526A1

公开(公告)日：2015-07-16

申请号：US14621641

申请日：2015-02-13

申请人： Joanna N. Ptasinski ,  Lin Pang ,  Pang-Chen Sun ,  Boris Slutsky ,  Yeshaiahu Fainman

发明人： Joanna N. Ptasinski ,  Lin Pang ,  Pang-Chen Sun ,  Boris Slutsky ,  Yeshaiahu Fainman

IPC分类号： G01N21/552

CPC分类号： G01N21/554 ,  G01N2201/06113 ,  G01N2201/12

摘要： A differential measurement design employing two nearly collinear optical beams provides surface plasmon polariton resonance (SPR) sensors and a corresponding method of increased dynamic range and signal to noise ratio. The differential measurement device and method based on wavelength interrogation, employs a single incident polarization state, and is combined with a 2-D nanohole array for operation at near-normal incidence, where this approach offers a decrease in the measurement time.

摘要翻译： 使用两个几乎共线的光束的差分测量设计提供了表面等离子体激元谐振（SPR）传感器和相应的增加动态范围和信噪比的方法。 基于波长询问的差分测量装置和方法采用单一入射偏振态，并与2-D纳米孔阵列组合，用于在近正常入射下进行操作，其中该方法提供了测量时间的减少。

公开(公告)号：US5257093A

公开(公告)日：1993-10-26

申请号：US791038

申请日：1991-11-12

申请人： Michael Mager ,  Boris Slutsky

发明人： Michael Mager ,  Boris Slutsky

IPC分类号： G01B11/14 ,  G11B5/60 ,  G11B33/10

CPC分类号： G11B5/6005 ,  G01B11/14 ,  G11B33/10

摘要： An apparatus employs the phenomenon of frustrated total internal reflection for measuring nanometric distances. It includes a two-piece glass reference disk (200) consisting of an inner disk (202) and a coupling lens (212). The inner disk (202) contains a convex spherical surface (204) and a flat bottom surface (206). The coupling lens has a planar top surface (214) and a concave spherical surface (216). It is fixed over the inner disk which is rotated by a spindle (208). Aligned prisms (218 and 220) have polished planes (222 and 224) and polished surfaces (230 and 232). These surfaces provide optical contact of the prisms with the planar top surface of the coupling lens. A magnetic head (238) is suspended over the flat bottom surface of the inner disk. Other configurations of the reference disk and optical prisms are possible. One of the variations of the optical system contains a colored-light source (248), aimed at the polished prism surface at essentially normal incidence, a beam expander ( 250), placed between the light source and the polished prism surface, and a TV camera (252), which is positioned opposite the polished prism surface (222). As the spindle rotates the inner disk, the magnetic head floats on an air cushion created by the surface of the glass disk. A light beam (242), generated by the light-source, is converted into a wide parallel beam (244), which is directed at the surface of the magnetic head. A reflected beam (246) is received by the TV camera. The spacing between the magnetic head and the disk surface can be calculated from the drop in intensity of reflected light.

摘要翻译： 一种装置采用沮丧的全内反射现象来测量纳米距离。 它包括由内盘（202）和耦合透镜（212）组成的两件式玻璃基准盘（200）。 内盘（202）包含凸球面（204）和平底面（206）。 耦合透镜具有平坦的顶表面（214）和凹的球形表面（216）。 它固定在由主轴（208）旋转的内盘上。 对准棱镜（218和220）具有抛光平面（222和224）和抛光表面（230和232）。 这些表面提供棱镜与耦合透镜的平面顶表面的光学接触。 磁头（238）悬挂在内盘的平底表面上。 参考盘和光学棱镜的其他配置是可能的。 光学系统的一个变型包括着色光源（248），其以基本上垂直入射的方式瞄准抛光的棱镜表面，放置在光源和抛光的棱镜表面之间的光束扩展器（250）和电视 照相机（252），其位于抛光的棱镜表面（222）对面。 当主轴旋转内盘时，磁头浮在由玻璃盘表面产生的气垫上。 由光源产生的光束（242）被转换成指向磁头表面的宽平行光束（244）。 反射光束（246）由电视摄像机接收。 可以根据反射光的强度的下降来计算磁头和盘表面之间的间隔。

公开(公告)号：US08958999B1

公开(公告)日：2015-02-17

申请号：US13195057

申请日：2011-08-01

申请人： Joanna N. Ptasinski ,  Lin Pang ,  Pang-Chen Sun ,  Boris Slutsky ,  Yeshaiahu Fainman

发明人： Joanna N. Ptasinski ,  Lin Pang ,  Pang-Chen Sun ,  Boris Slutsky ,  Yeshaiahu Fainman

IPC分类号： G01R13/00

CPC分类号： G01N21/554 ,  G01N2201/06113 ,  G01N2201/12

摘要： A differential measurement design employing two nearly collinear optical beams provides surface plasmon polariton resonance (SPR) sensors and a corresponding method of increased dynamic range and signal to noise ratio. The differential measurement device and method based on wavelength interrogation, employs a single incident polarization state, and is combined with a 2-D nanohole array for operation at near-normal incidence, where this approach offers a decrease in the measurement time.

摘要翻译： 使用两个几乎共线的光束的差分测量设计提供了表面等离子体激元谐振（SPR）传感器和相应的增加动态范围和信噪比的方法。 基于波长询问的差分测量装置和方法采用单一入射偏振态，并与2-D纳米孔阵列组合，用于在近正常入射下进行操作，其中该方法提供了测量时间的减少。

公开(公告)号：US5382887A

公开(公告)日：1995-01-17

申请号：US36975

申请日：1993-03-25

申请人： Nahum Guzik ,  Ufuk Karaaslan ,  Boris Slutsky

发明人： Nahum Guzik ,  Ufuk Karaaslan ,  Boris Slutsky

IPC分类号： G11B5/58 ,  G11B5/55 ,  G11B5/84 ,  G11B21/10 ,  G11B33/10 ,  G11B5/54

CPC分类号： G11B5/5534 ,  G11B33/10

摘要： A magnetic head and disk tester which has linear encoders (40 and 42) installed on lateral sides of a carriage (30) which carries a magnetic head (34), movable in a radial direction along a hard disk. Positions of the magnetic head with respect to the hard disk are measured by means of the linear encoders which are arranged on both lateral sides of the carriage. Outputs of the encoders are supplied to an arithmetic unit (45) which calculates the arithmetic mean of the encoder's outputs and transmits the resulting signal via a feedback line (47) to a piezoelectric translator (37). The translator is the final drive element in the carriage-drive system and is used for fine positioning of the carriage. Thus, if during positioning of the magnetic head the latter is installed in an erroneous position, e.g., because of yawing which may result from asymmetrical friction on both sides of the carriage, the feedback-positioning system composed of the encoders, the arithmetic unit, and the piezoelectric translator calculates the error and shifts the carriage in a direction opposite to the error to the correct position.

摘要翻译： 一种磁头和磁盘测试仪，其具有安装在滑架（30）的侧面上的线性编码器（40和42），所述滑架承载可沿着硬盘在径向方向上移动的磁头（34）。 磁头相对于硬盘的位置通过布置在滑架两侧的线性编码器来​​测量。 编码器的输出被提供给计算编码器输出的算术平均值的运算单元（45），并通过反馈线（47）将结果信号发送到压电转换器（37）。 翻译器是托架驱动系统中的最终驱动元件，用于滑架的精细定位。 因此，如果在磁头的定位期间，后者被安装在错误的位置，例如由于可能由滑架的两侧上的不对称摩擦导致的偏航，由编码器，运算单元组成的反馈定位系统， 并且压电转换器计算误差并将滑架沿与错误相反的方向移动到正确的位置。