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    Multiband common-optical-path image-spectrum associated remote sensing measurement system and method
    221.
    发明授权
    Multiband common-optical-path image-spectrum associated remote sensing measurement system and method 有权

    公开(公告)号：US09869793B2

    公开(公告)日：2018-01-16

    申请号：US15108175

    申请日：2014-09-02

    Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

    Inventor： Tianxu Zhang ,  Xiaobing Dai ,  Xiangyan Liu ,  Jianfei Ji ,  Xudong He ,  Pengcheng Gao

    IPC: G01V8/10 ,  G01J3/02 ,  G01J3/453 ,  G01J3/28

    CPC classification number: G01V8/10 ,  G01J3/0208 ,  G01J3/453 ,  G01J2003/2826

    Abstract: The present invention relates to a multiband common-optical-path image-spectrum associated remote sensing measurement system and method. The system includes an infrared window (1), a two-dimensional rotating mirror (2), a planar reflector (3), a reflective multiband infrared lens system (4), a Fourier interference spectrum module (5), an image-spectrum associated processing module (6), a power supply module (7), a refrigerating module (8), and a display module (9); the incident light enters from the infrared window (1), is reflected by the two-dimensional rotating mirror (2), and then is reflected by the planar reflector (3) to the reflective multiband infrared lens system (4) and then is split by a spectroscope (42); the transmitted light is focused by means of a convergent lens and is imaged on an infrared detector (43); the reflected light is focused on an infrared optical fiber coupler (44) and enters the Fourier interference spectrum module (5) through an infrared optical fiber to form an interference pattern, and further, spectrum data is obtained through Fourier transformation; the image-spectrum associated processing module (6) effectively combines broadband spectrum imaging and non-imaging spectrum data, and controls the two-dimensional rotating mirror (2) to point to a target, thereby implementing intelligent remote sensing measurement. The present invention has capabilities of performing local scene region spectrum measurement and multi-target tracking spectrum measurement, has high speed, an appropriate data amount, and low cost.

    INTERFEROMETER WITH AN OSCILLATING REFLECTOR PROVIDED BY AN OUTER SURFACE OF A SONOTRODE AND FOURIER TRANSFORM INFRARED SPECTROMETER
    222.
    发明申请
    INTERFEROMETER WITH AN OSCILLATING REFLECTOR PROVIDED BY AN OUTER SURFACE OF A SONOTRODE AND FOURIER TRANSFORM INFRARED SPECTROMETER 审中-公开

    公开(公告)号：US20170343415A1

    公开(公告)日：2017-11-30

    申请号：US15528575

    申请日：2015-11-24

    Applicant: FREIE UNIVERSITAET BERLIN

    Inventor： Bjoern SUESS

    IPC: G01J3/28 ,  G01J3/02 ,  G01J3/453 ,  G02B26/00

    CPC classification number: G01J3/2889 ,  G01J3/021 ,  G01J3/4532 ,  G01J3/4535 ,  G02B26/001

    Abstract: The present invention is directed to an Interferometer (100) comprising a source (110) of a primary energy beam (111), a first reflector (120) being provided static such that a first path length from the source (110) to the first reflector (120) is constant, a reflector (1) with an energy beam reflecting surface (20) being provided by an outer surface of a sonotrode (10), wherein the reflector (1) is provided to oscillate such that a second path length from the source (110) to the reflecting surface (20) is variable, a target (140), a means for splitting an energy beam (160) arranged such that it divides the primary beam (111) into a first energy beam (112) incident onto the first reflector (120), and a second energy beam (113) incident onto the reflector (1) adapted to oscillate, and a means for combining energy beams (170) arranged such that it combines a third energy beam (114) reflected from the first reflector (120) and a fourth energy beam (115) reflected from the reflector (1) adapted to oscillate incident onto the target (140). Further provided is an infrared Fourier transform spectrometer (200).

    OPTICAL COMPUTING DEVICES AND METHODS UTILIZING MULTIPLE INTEGRATED COMPUTATIONAL ELEMENTS IN SEQUENCE
    226.
    发明申请
    OPTICAL COMPUTING DEVICES AND METHODS UTILIZING MULTIPLE INTEGRATED COMPUTATIONAL ELEMENTS IN SEQUENCE 审中-公开

    公开(公告)号：US20170241839A1

    公开(公告)日：2017-08-24

    申请号：US15504646

    申请日：2015-09-16

    Applicant: Halliburton Energy Services, Inc.

    Inventor： David L. PERKINS

    IPC: G01J3/28 ,  G01J3/453 ,  G01J3/02

    CPC classification number: G01J3/2803 ,  G01J3/02 ,  G01J3/0256 ,  G01J3/453 ,  G01J2003/283 ,  G01N21/31

    Abstract: Detection sensitivity of optical computing devices may be improved by utilizing multiple integrated computational elements in combination with one another. Optical computing devices containing multiple integrated computational elements may comprise: two or more integrated computational elements that are identical to one another and optically interact sequentially with incident electromagnetic radiation, such that at least a portion of the photons from the incident electromagnetic radiation optically interacts with each integrated computational element; wherein the sequential optical interaction of the incident electromagnetic radiation with the two or more integrated computational elements increases a detection sensitivity of the optical computing device relative to that obtained when only one of the integrated computational elements is present; and a detector that receives the photons that have optically interacted with each integrated computational element.

    Methods, systems, and apparatus for imaging spectroscopy
    227.
    发明授权
    Methods, systems, and apparatus for imaging spectroscopy 有权

    公开(公告)号：US09681798B2

    公开(公告)日：2017-06-20

    申请号：US14933666

    申请日：2015-11-05

    Applicant: Ian W. Hunter ,  Yi Chen

    Inventor： Ian W. Hunter ,  Yi Chen

    IPC: A61B1/06 ,  G01J3/45 ,  G01J3/28 ,  G01J3/02 ,  G01J3/12 ,  G01J3/453

    CPC classification number: A61B1/0638 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/1256 ,  G01J3/2823 ,  G01J3/45 ,  G01J3/453 ,  G01J3/4535

    Abstract: Imaging spectrometers can be used to generate hyperspectral images for medical diagnoses, contaminant detection, and food safety inspections, among other applications. An exemplary imaging spectrometer includes an integrated position sensing array that measures the relative positions of the interferometer components based on an interference pattern generated by illuminating the interferometer with a reference beam. Such an imaging spectrometer includes a processor that controls the interferometer component position by actuating a voice coil and several piezo-electric elements to align the components with respect to each other and to provide a desired optical path length mismatch between the interferometer arms. In some cases, the processor may use feedback and feed forward control, possibly based on the actuators' transfer functions, for more precise positioning. The processor may also implement adaptive and recursive spectral sampling to reduce the image acquisition period.

    Optical interferometer, data acquisition device, and data acquisition method
    228.
    发明授权
    Optical interferometer, data acquisition device, and data acquisition method 有权

    公开(公告)号：US09599454B2

    公开(公告)日：2017-03-21

    申请号：US14348495

    申请日：2012-09-27

    Applicant: TOKYO UNIVERSITY OF SCIENCE FOUNDATION

    Inventor： Hiroharu Yui

    IPC: G01J3/45 ,  G01J3/44 ,  G01B9/02 ,  G01J3/453 ,  G01N21/65 ,  G01J9/04

    CPC classification number: G01B9/02041 ,  G01J3/44 ,  G01J3/4535 ,  G01J9/04 ,  G01N21/65 ,  G01N2021/655

    Abstract: An optical interferometer includes: a light source that emits a coherent first beam and a second beam that has a frequency difference corresponding to the natural frequency of a target molecule; amplitude modulating means that modulates the amplitude of the second beam; splitting means that splits the first beam into a reference beam and a first applied beam; optical path length adjusting means that adjusts the optical path length of the reference beam; and detecting means that detects an interference pattern between the reference beam and the first beam (a signal beam) that has experienced a stimulated Raman loss or gain in accordance with the amplitude modulation as a result of the frequency difference resonating with the target molecule when the first applied beam and a second applied beam (the amplitude modulated second beam) have been applied to a measurement position of an object.

    CHARACTERIZATION OF ABSOLUTE SPECTRAL RADIANCE OF AN UNKNOWN IR SOURCE
    230.
    发明申请
    CHARACTERIZATION OF ABSOLUTE SPECTRAL RADIANCE OF AN UNKNOWN IR SOURCE 审中-公开
    表征未知红外光源的绝对光谱辐射

    公开(公告)号：US20160349113A1

    公开(公告)日：2016-12-01

    申请号：US14724247

    申请日：2015-05-28

    Applicant: Raytheon Company

    Inventor： Steven F. Cook

    IPC: G01J3/453 ,  G01J3/02

    CPC classification number: G01J3/453 ,  G01J3/027 ,  G01J3/0275 ,  G01J5/522

    Abstract: The absolute spectral radiance of an unknown IR source is measured by bracketing the radiance measurements of the source over a spectral band with radiance measurements of a characterized blackbody at different temperatures. The absolute spectral radiance (or effective temperature) is calculated for the blackbody and paired with the relative radiance measurements. The absolute spectral radiance for the unknown IR source is derived via interpolation. The use of a characterized plate blackbody and a FTIRS allows for rapid and accurate characterization of the unknown IR source across a spectral band.

    Abstract translation: 未知红外光源的绝对光谱辐射度是通过在不同温度下通过在特征黑体的辐射测量的光谱带上包围光源的辐射度测量来测量的。 计算黑体的绝对光谱辐射度（或有效温度），并与相对辐射度测量值配对。 未知红外光源的绝对光谱辐射是通过插值得出的。 使用特征板黑体和FTIRS可以快速准确地表征光谱带上的未知红外源。

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