公开(公告)号：US20140336990A1

公开(公告)日：2014-11-13

申请号：US14360505

申请日：2012-10-24

Applicant: NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF AGRICULTURE AND TECHNOLOGY

Inventor： Toshiaki Iwai ,  Toshiharu Watarai

IPC: G01N15/14

CPC classification number: G01N15/1429 ,  G01B9/02044 ,  G01J3/4412 ,  G01J9/02 ,  G01J2003/4418 ,  G01N15/0211 ,  G01N21/51 ,  G01N2015/0222

Abstract: Light emitted from a low-coherence light source is split into two beams by an optical coupler. One of the beams is applied to a sample medium. The other beam is subjected to phase modulation by a reference minor and a vibration element. The (reference) beam subjected to phase modulation and a scattered beam from the sample medium are wavelength-resolved by a diffraction grating, and the spectrum of resulting interference light is detected by a photodetector. A calculation section calculates an intensity signal corresponding to the position of each scattering point in the sample medium based on the detected spectrum, calculates a power spectrum corresponding to the position of each scattering point based on a temporal change in the intensity signal corresponding to the position of each scattering point, and calculates a diffusion coefficient of the particles corresponding to the position of each scattering point based on the calculated power spectrum.

Abstract translation: 从低相干光源发射的光被光耦合器分成两束。 将一个光束施加到样品介质。 另一束通过参考小型和振动元件进行相位调制。 经受相位调制的（参考）光束和来自样品介质的散射光束通过衍射光栅进行波长分辨，所得到的干涉光的光谱由光电检测器检测。 计算部根据检测出的光谱，计算与样本介质中的各散射点的位置对应的强度信号，根据与该位置对应的强度信号的时间变化，计算与各散射点的位置对应的功率谱 并根据计算的功率谱计算与各散射点的位置对应的粒子的扩散系数。

公开(公告)号：US20190195804A1

公开(公告)日：2019-06-27

申请号：US16229589

申请日：2018-12-21

Applicant: NUCTECH COMPANY LIMITED

Inventor： Haihui LIU ,  Hongqiu Wang ,  Jianhong Zhang

IPC: G01N21/65 ,  G01J3/44 ,  G01N21/27

CPC classification number: G01N21/658 ,  G01J3/027 ,  G01J3/44 ,  G01J3/4412 ,  G01J2003/4418 ,  G01N21/27 ,  G01N21/65

Abstract: A detection apparatus includes: a laser configured to emit laser light towards an object to be detected; a Raman spectrometer configured to receive a Raman light signal from the object; a light sensor configured to receive portions of the laser light reflected and scattered by the object under irradiation of the laser light, and to determine power of the received portions of the laser light; and a controller configured to control an operation of the detection apparatus based on the power determined by the light sensor. Further, there is provided a detection method using the above detection apparatus.

公开(公告)号：US20190033217A1

公开(公告)日：2019-01-31

申请号：US15885035

申请日：2018-01-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang Kyu KIM

IPC: G01N21/65 ,  G01J3/44 ,  G01N21/66

CPC classification number: G01N21/65 ,  G01J3/027 ,  G01J3/10 ,  G01J3/42 ,  G01J3/44 ,  G01J3/4412 ,  G01J2003/1282 ,  G01J2003/4418 ,  G01N21/359 ,  G01N21/4738 ,  G01N21/66

Abstract: A spectrum measurement apparatus includes: a plurality of light sources configured to emit light having different wavelengths to an object; a light detector configured to receive light, which is reflected or scattered from or transmitted through the object, and to measure an intensity of the received light; and a processor configured to determine a strength of an electric signal to be applied to at least one of the plurality of light sources by using one of the plurality of light sources, and by applying the electric signal having the determined strength to the plurality of light sources to obtain a spectrum of the object.

公开(公告)号：US4828388A

公开(公告)日：1989-05-09

申请号：US59619

申请日：1987-06-08

Applicant: Akihiro Namba

Inventor： Akihiro Namba

IPC: G01N21/51 ,  G01J3/44 ,  G01N15/06 ,  G01N21/47 ,  G01N33/536

CPC classification number: G01N21/47 ,  G01J2003/4418 ,  Y10S436/805

Abstract: A concentration of antigen substances contained in a sample is measured by detecting light scattered by latex particles coated with antibody substances which are specifically reactive with the antigen substances to be measured. The scattered light is received by a photodetector and an output signal of the photodetector is supplied to a fast Fourier transform unit to derive a power spectrum density of the scattered light. Then a white level of the power spectrum density is derived, and the concentration of the antigen substances in the sample is detected from the white level with the aid of a calibration curve representing a relationship between the concentration and the white level.

Abstract translation: 检测样品中含有的抗原物质的浓度，通过检测由与要测量的抗原物质特异性反应的抗体物质的胶乳颗粒散射的光来测定。 散射光被光电检测器接收，并且光电检测器的输出信号被提供给快速傅立叶变换单元以导出散射光的功率谱密度。 然后得到功率谱密度的白色水平，借助于表示浓度与白色水平之间的关系的校准曲线，从白色水平检测样品中抗原物质的浓度。