一种基于复合抛物面聚光器的小型近红外光谱仪光学系统

    公开(公告)号:CN107167448A

    公开(公告)日:2017-09-15

    申请号:CN201710568925.X

    申请日:2017-07-13

    Applicant: 燕山大学

    Inventor: 高静 韩光 卢启鹏

    Abstract: 本发明公开了一种基于复合抛物面聚光器的小型近红外光谱仪光学系统,涉及光谱分析仪器技术领域,系统包括一个光学平台,光学平台上依次设置有:光源、滤光装置、第一聚焦机构、样品室、第二聚焦机构和光谱探测器;所述光源能够发出多个不同波长的近红外光,近红外光经过滤光装置后形成单色近红外光;所述第一聚焦机构对所述单色近红外光进行第一次聚焦;所述样品室设置在聚焦光斑处;所述第二聚焦机构对待测样品透射的发散近红外光进行第二次聚焦;所述光谱探测器接收并检测不同波长的近红外光谱信号。本发明实现了仪器低成本、低功耗、小型化、简单化,光照度分布较均匀,提高了近红外光谱仪的光通量,进而增大了仪器的信噪比和整体分析精度。

    基于可调谐激光器的机动车尾气遥感检测系统及方法

    公开(公告)号:CN106383097A

    公开(公告)日:2017-02-08

    申请号:CN201611022075.5

    申请日:2016-11-16

    Abstract: 本发明涉及一种基于可调谐激光器的机动车尾气遥感检测系统及方法,激光器控制模块控制激光器模组中的各激光器分别发出所需波长范围的检测光;激光器模组发出的多束检测光经过光路准直阵列单元准直形成平行光束并发射到光学反射镜单元;在开放式光路条件下,光学反射镜单元将穿过机动车尾气的激光检测光束反射至光路聚焦及滤光阵列单元进行聚焦和滤波处理,经聚焦及滤光阵列单元出射的检测光束经半导体光电探测器组探测接收并经信号采集及处理装置发送到计算机,计算机计算出开放式光路条件下机动车尾气中各组分浓度。本发明可以广泛应用于机动车尾气遥感检测中。

    GAS CONCENTRATION MEASUREMENT DEVICE
    5.
    发明公开
    GAS CONCENTRATION MEASUREMENT DEVICE 审中-公开
    气体浓度测量装置

    公开(公告)号:EP3165906A1

    公开(公告)日:2017-05-10

    申请号:EP15815411.2

    申请日:2015-06-11

    Inventor: YASUDA, Masaaki

    CPC classification number: G01N21/3504 G01N21/61 G01N33/004 G01N2201/0686

    Abstract: A gas concentration measurement device (100) includes a waveguide member (90) including an entrance portion (91) and an exit portion (92); a rotating member; a first band pass filter (41) and a second band pass filter (42) that are provided on the rotating member and located on a pair of planes that intersect each other; and a rotational driving unit. The rotating member is rotated by the rotational driving unit so that the first band pass filter (41) and the second band pass filter (42) are selectively located at a transmitting position. When a portion of the rotating member, the first band pass filter (41), or the second band pass filter (42), the portion having a maximum radius of gyration around a rotating shaft, is defined as a maximum radius portion (38), and when a rotation locus obtained by imaginarily rotating the maximum radius portion (38) around the rotating shaft in a view along the rotating shaft is defined as a reference circle (C), the exit portion (92) is located in the reference circle (C).

    Abstract translation: 一种气体浓度测量装置(100),包括:具有入口部(91)和出口部(92)的波导部件(90) 旋转构件; 第一带通滤波器(41)和第二带通滤波器(42),所述第一带通滤波器和第二带通滤波器设置在所述旋转构件上并且位于彼此相交的一对平面上; 和旋转驱动单元。 通过旋转驱动单元使旋转构件旋转,使得第一带通滤波器(41)和第二带通滤波器(42)选择性地位于发射位置。 当旋转构件的一部分,所述第一带通滤波器(41),或所述第二带通滤波器(42),具有回转围绕旋转轴的最大半径的部分,被定义为最大半径部分(38) ,并且当通过在沿着旋转轴的图假想地旋转所述旋转轴周围的最大半径部分(38)而获得的旋转轨迹被定义为基准圆(C),出口部分(92)位于基准圆 (C)。

    IDENTIFYING TARGETED GASEOUS CHEMICAL COMPOUND

    公开(公告)号:WO2019094605A1

    公开(公告)日:2019-05-16

    申请号:PCT/US2018/059847

    申请日:2018-11-08

    Applicant: ITRON, INC.

    Abstract: Systems and methods for verifying that light absorption is caused by a targeted gaseous chemical compound. A first transmittance of light, either generated at, or filtered to, a first wavelength range and a second transmittance of light, either generated at, or filtered to, a second wavelength range are measured by first and second photon detectors. A ratio of the first and second measured transmittance is determined and that ratio is compared to a transmittance ratio associated with a targeted gaseous chemical compound to verify that the light absorption is caused by the targeted gaseous chemical compound.

    Gas lens filter systems and methods

    公开(公告)号:US12105020B2

    公开(公告)日:2024-10-01

    申请号:US17351126

    申请日:2021-06-17

    Abstract: Provided are systems and methods to filter infrared spectrum radiation that can be integrated with a compact optical system for an infrared imaging system. The optical system includes an objective lens element configured to receive and transmit infrared (IR) radiation from a scene, where the IR radiation from the scene includes a particular range of wavelengths corresponding to an absorption spectrum or a transmission spectrum of a gas. The optical system also includes a spectral lens element configured to receive the IR radiation transmitted through the objective lens element, where the spectral lens element comprises a first interference filter disposed on a first surface of the spectral lens element. The interference filter is configured to filter the IR radiation transmitted through the objective lens element to a narrower wavelength band that includes the particular range of wavelengths.

    DETECTING MOISTURE IN SOLAR CELLS
    8.
    发明申请

    公开(公告)号:US20180180538A1

    公开(公告)日:2018-06-28

    申请号:US15391065

    申请日:2016-12-27

    CPC classification number: G01N21/3554 G01N33/18 G01N2021/945 G01N2201/0686

    Abstract: An imaging apparatus includes a camera with a solid-state sensor and an illumination selector. The illumination selector is arranged for optical coupling with the sensor and arranged for communicating electromagnetic radiation within a shortwave infrared narrowband to the sensor. The shortwave infrared narrowband includes a peak absorption or peak reflection wavelength of moisture to infrared illumination to image moisture disposed within a solar cell array.

    WGM-based molecular sensors
    10.
    发明授权
    WGM-based molecular sensors 有权
    基于WGM的分子传感器

    公开(公告)号:US09482608B1

    公开(公告)日:2016-11-01

    申请号:US14659579

    申请日:2015-03-16

    Abstract: The present invention concerns an optical molecular sensing device and related method. The optical molecular sensing device has an optical resonator adapted to be connected to an excitation source. The excitation source may be a laser operating at a 2.7-2.8 um spectral range. The optical molecular sensing device has an emission spectrum comprised of a plurality wavelengths. Also included are a detection unit and a RF frequency counter to detect at least one RF beat note resulting from detecting the emission spectrum of the optical resonator. A change in frequency of the RF beat note indicates the presence of a target molecule.

    Abstract translation: 本发明涉及光学分子感测装置及相关方法。 光学分子感测装置具有适于连接到激发源的光学谐振器。 激发源可以是在2.7-2.8um光谱范围内操作的激光器。 光学分子感测装置具有由多个波长组成的发射光谱。 还包括检测单元和RF频率计数器,用于检测由检测光学谐振器的发射光谱而产生的至少一个RF拍音。 RF拍音的频率变化表示存在目标分子。

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