公开(公告)号：US09354189B2

公开(公告)日：2016-05-31

申请号：US13701042

申请日：2011-06-01

Applicant: Wesley Philip Wong ,  Kenneth Anders Halvorsen

Inventor： Wesley Philip Wong ,  Kenneth Anders Halvorsen

IPC: G01N25/00 ,  G01N24/00 ,  B04B15/00 ,  G01N21/07 ,  G01N21/64 ,  G02B21/36

CPC classification number: G01N24/006 ,  B04B15/00 ,  G01N21/07 ,  G01N21/6458 ,  G02B21/362

Abstract: An apparatus for measuring a characteristic of a sample includes a sample measurement apparatus (1404), which includes a light source (1406) configured to illuminate the sample; and a detector (1412) configured to receive light from the sample. The sample measurement apparatus is sized and dimensioned to fit within a centrifuge receptacle, the centrifuge receptacle (1416) coupled to a spindle configured to rotate the centrifuge receptacle to apply a force to the sample.

Abstract translation: 一种用于测量样品特征的装置，包括样品测量装置（1404），其包括被配置为照射样品的光源（1406） 以及被配置为从所述样品接收光的检测器（1412）。 样品测量装置的尺寸和尺寸适于装配在离心机容器内，离心机容器（1416）联接到心轴，所述心轴构造成旋转离心机容器以向样品施加力。

公开(公告)号：US08698912B2

公开(公告)日：2014-04-15

申请号：US13057623

申请日：2009-08-05

Applicant: Wesley Philip Wong ,  Kenneth Anders Halvorsen

Inventor： Wesley Philip Wong ,  Kenneth Anders Halvorsen

IPC: H04N5/225

CPC classification number: G06K9/00496 ,  G06K9/00134 ,  G06K9/2027

Abstract: Methods, apparatus and systems for determining a power spectral density (PSD) of a signal, in which modulation of the signal is employed to facilitate determination of one or more PSD values over a wide range of frequencies. In some implementations, the signal may represent a wide-sense stationary random process. In one example, the signal is measured/sampled during a plurality of measurement windows, during which an intensity of the signal is modulated at one or more modulation frequencies. A variance of a set of quantities determined from the signal samples is calculated and used to determine respective values of the power spectral density (PSD) for the signal at the one or more modulation frequencies. The one or more modulation frequencies may be chosen in excess of the Nyquist frequency of the sampling process, such that the signal may be characterized for one or more frequencies above the Nyquist limit.

Abstract translation: 用于确定信号的功率谱密度（PSD）的方法，装置和系统，其中采用信号的调制以便于在宽的频率范围内确定一个或多个PSD值。 在一些实现中，信号可以表示广义静态随机过程。 在一个示例中，在多个测量窗口期间测量/采样信号，在该测量窗口期间，以一个或多个调制频率调制信号的强度。 计算从信号样本确定的一组数量的方差，并用于确定在一个或多个调制频率处的信号的功率谱密度（PSD）的相应值。 可以选择超过采样处理的奈奎斯特频率的一个或多个调制频率，使得该信号可以被表征为高于奈奎斯特极限的一个或多个频率。

公开(公告)号：US20130130884A1

公开(公告)日：2013-05-23

申请号：US13701042

申请日：2011-06-01

Applicant: Wesley Philip Wong ,  Kenneth Anders Halvorsen

Inventor： Wesley Philip Wong ,  Kenneth Anders Halvorsen

IPC: G01N24/00

CPC classification number: G01N24/006 ,  B04B15/00 ,  G01N21/07 ,  G01N21/6458 ,  G02B21/362

Abstract: An apparatus for measuring a characteristic of a sample includes a sample measurement apparatus (1404), which includes a light source (1406) configured to illuminate the sample; and a detector (1412) configured to receive light from the sample. The sample measurement apparatus is sized and dimensioned to fit within a centrifuge receptacle, the centrifuge receptacle (1416) coupled to a spindle configured to rotate the centrifuge receptacle to apply a force to the sample.

Abstract translation: 一种用于测量样品特征的装置，包括样品测量装置（1404），其包括被配置为照射样品的光源（1406） 以及被配置为从所述样品接收光的检测器（1412）。 样品测量装置的尺寸和尺寸适于装配在离心机容器内，离心机容器（1416）联接到心轴，所述心轴构造成旋转离心机容器以向样品施加力。

公开(公告)号：US20110193987A1

公开(公告)日：2011-08-11

申请号：US13057623

申请日：2009-08-05

Applicant: Wesley Philip Wong ,  Kenneth Anders Halvorsen

Inventor： Wesley Philip Wong ,  Kenneth Anders Halvorsen

IPC: G06K9/00 ,  H04N5/225

CPC classification number: G06K9/00496 ,  G06K9/00134 ,  G06K9/2027

Abstract: Methods, apparatus and systems for determining a power spectral density (PSD) of a signal, in which modulation of the signal is employed to facilitate determination of one or more PSD values over a wide range of frequencies. In some implementations, the signal may represent a wide-sense stationary random process. In one example, the signal is measured/sampled during a plurality of measurement windows, during which an intensity of the signal is modulated at one or more modulation frequencies. A variance of a set of quantities determined from the signal samples is calculated and used to determine respective values of the power spectral density (PSD) for the signal at the one or more modulation frequencies. The one or more modulation frequencies may be chosen in excess of the Nyquist frequency of the sampling process, such that the signal may be characterized for one or more frequencies above the Nyquist limit.

Abstract translation: 用于确定信号的功率谱密度（PSD）的方法，装置和系统，其中采用信号的调制以便于在宽的频率范围内确定一个或多个PSD值。 在一些实现中，信号可以表示广义静态随机过程。 在一个示例中，在多个测量窗口期间测量/采样信号，在该测量窗口期间，以一个或多个调制频率调制信号的强度。 计算从信号样本确定的一组数量的方差，并用于确定在一个或多个调制频率处的信号的功率谱密度（PSD）的相应值。 可以选择超过采样处理的奈奎斯特频率的一个或多个调制频率，使得该信号可以被表征为高于奈奎斯特极限的一个或多个频率。