气体检测器
    1.
    发明公开

    公开(公告)号:CN103189736A

    公开(公告)日:2013-07-03

    申请号:CN201180053399.4

    申请日:2011-10-21

    Abstract: 一种气体检测器(100),用于在目标区域(106)中的远程气体检测,包括用于将光束(110)发射到目标区域中的光源(102)和用于感测自目标区域返回的光的光传感器(112)。光束以大约气体的吸收波长而被波长调制。控制器(108)操作性连接至光传感器,用于基于由光传感器感测的返回光而检测气体在光束路径上的存在。操作性连接至控制器的指示器(124)指示气体的存在。扫描装置(104)关于光源布置,以便经过目标区域扫描光束,并且关于光传感器如此布置使得光传感器经由扫描装置接收返回光。指示器与扫描装置共操作以指示气体在目标区域中的位置。

    气体检测器
    2.
    发明授权

    公开(公告)号:CN103189736B

    公开(公告)日:2016-01-20

    申请号:CN201180053399.4

    申请日:2011-10-21

    Abstract: 一种气体检测器(100),用于在目标区域(106)中的远程气体检测,包括用于将光束(110)发射到目标区域中的光源(102)和用于感测自目标区域返回的光的光传感器(112)。光束以大约气体的吸收波长而被波长调制。控制器(108)操作性连接至光传感器,用于基于由光传感器感测的返回光而检测气体在光束路径上的存在。操作性连接至控制器的指示器(124)指示气体的存在。扫描装置(104)关于光源布置,以便经过目标区域扫描光束,并且关于光传感器如此布置使得光传感器经由扫描装置接收返回光。指示器与扫描装置共操作以指示气体在目标区域中的位置。

    Gas detector
    3.
    发明授权
    Gas detector 有权
    气体探测器

    公开(公告)号:US08786858B2

    公开(公告)日:2014-07-22

    申请号:US13883077

    申请日:2011-10-21

    Abstract: A gas detector (100) for remote gas detection in a target region (106) comprises a light source (102) for emitting a light beam (110) into the target region and a light sensor (112) for sensing light returning therefrom. The light beam is wavelength-modulated around an absorption wavelength of the gas. A controller (108) is operatively connected to the light sensor for detecting a presence of the gas on a path of the light beam based on returning light sensed by the light sensor. An indicator (124) that is operatively connected to the controller indicates the presence of the gas. A scanning device (104) is arranged with respect to the light source so as to scan the light beam through the target region, and with respect to the light sensor so that the light sensor receives the returning light via the scanning device. The indicator cooperates with the scanning device to indicate a position of the gas in the target region.

    Abstract translation: 用于在目标区域(106)中进行远程气体检测的气体检测器(100)包括用于将光束(110)发射到目标区域中的光源(102)和用于感测从其返回的光的光传感器(112)。 光束围绕气体的吸收波长进行波长调制。 控制器(108)可操作地连接到光传感器,用于基于由光传感器感测到的返回光来检测在光束的路径上的气体的存在。 可操作地连接到控制器的指示器(124)指示气体的存在。 相对于光源布置扫描装置(104),以扫描通过目标区域的光束,并相对于光传感器扫描,使得光传感器经由扫描装置接收返回光。 该指示器与扫描装置配合以指示气体在目标区域中的位置。

    Tunable interferometric scanning spectrometer
    4.
    发明授权
    Tunable interferometric scanning spectrometer 有权
    可调干涉扫描光谱仪

    公开(公告)号:US08717573B1

    公开(公告)日:2014-05-06

    申请号:US13039254

    申请日:2011-03-02

    CPC classification number: G01J3/45 G01J3/06 G01J3/4532 G01J2003/067

    Abstract: A tunable interferometric scanning spectrometer is provided. In one aspect of the disclosure, the interferometric scanning spectrometer splits incoming light beams among different optical paths in the spectrometer, recombines the light beams from the different optical paths to produce combined light beams, detects intensities of the combined light beams across a focal plane (e.g., with a sensor array), and calculates a spectra based on the detected intensities and a filter function that is a function of optical path difference (OPD) between the optical paths. In one aspect, the filter function varies across the focal plane. In another aspect, the spectrometer comprises a rotatable dispersive element (e.g., glass plate) in one the optical paths and/or a moveable mirror in the other optical path. In this aspect, the spectrometer may be adjusted away from zero OPD by rotation of the dispersive element and/or displacement of the mirror.

    Abstract translation: 提供可调谐干涉扫描光谱仪。 在本公开的一个方面,干涉扫描光谱仪在光谱仪中分离不同光路中的入射光束,将来自不同光路的光束重新组合以产生组合光束,检测组合光束穿过焦平面的强度( 例如,使用传感器阵列),并且基于检测到的强度和作为光路之间的光程差(OPD)的函数的滤波器函数来计算光谱。 在一个方面,滤波器功能在焦平面上变化。 在另一方面,光谱仪包括在一个光路中的可旋转色散元件(例如,玻璃板)和/或另一光路中的可移动镜。 在这方面,可以通过分散元件的旋转和/或反射镜的位移来调节光谱仪远离零OPD。

    Photodiode array spectrometer
    5.
    发明授权
    Photodiode array spectrometer 失效
    光电二极管阵列光谱仪

    公开(公告)号:US4930892A

    公开(公告)日:1990-06-05

    申请号:US248511

    申请日:1988-09-23

    Abstract: A photodiode array spectrometer for determining the spectral composition of a plychromatic beam of radiation comprises diffraction means (10) which generate from the polychromatic beam a diffracted beam with a plurality of spatially separated diffracted rays of different wavelengths (.lambda..sub.1, .lambda..sub.2, .lambda..sub.3). A photodiode array (11) receives the diffracted beam whereby each photodiode intercepts a different spectral portion of the beam. A rotatable transparent plate (8) is provided in the beam path in front of the diffraction means (10) which, due to refraction of the beam upon entering and leaving the plate (8), permits to vary the direction of the beam impinging on the diffraction means (10) and therefore the direction of the diffracted beam in small steps depending on the angle of rotation of the plate (8). By the stepwise displacement of the diffracted beam across the photodiode array (11), a better sampling of the diffracted beam and therefore an improved spectral resolution is achieved. The invention can be used in the spectrometric analysis of a sample contained in a sample cell ( 5), whereby the sample cell is irradiated with polychromatic light from a light source (1).

    GAS DETECTOR
    6.
    发明申请
    GAS DETECTOR 有权
    气体检测器

    公开(公告)号:US20130229658A1

    公开(公告)日:2013-09-05

    申请号:US13883077

    申请日:2011-10-21

    Abstract: A gas detector (100) for remote gas detection in a target region (106) comprises a light source (102) for emitting a light beam (110) into the target region and a light sensor (112) for sensing light returning therefrom. The light beam is wavelength-modulated around an absorption wavelength of the gas. A controller (108) is operatively connected to the light sensor for detecting a presence of the gas on a path of the light beam based on returning light sensed by the light sensor. An indicator (124) that is operatively connected to the controller indicates the presence of the gas. A scanning device (104) is arranged with respect to the light source so as to scan the light beam through the target region, and with respect to the light sensor so that the light sensor receives the returning light via the scanning device. The indicator cooperates with the scanning device to indicate a position of the gas in the target region.

    Abstract translation: 用于在目标区域(106)中进行远程气体检测的气体检测器(100)包括用于将光束(110)发射到目标区域中的光源(102)和用于感测从其返回的光的光传感器(112)。 光束围绕气体的吸收波长进行波长调制。 控制器(108)可操作地连接到光传感器,用于基于由光传感器感测到的返回光来检测在光束的路径上的气体的存在。 可操作地连接到控制器的指示器(124)指示气体的存在。 相对于光源布置扫描装置(104),以扫描通过目标区域的光束,并相对于光传感器扫描,使得光传感器经由扫描装置接收返回光。 该指示器与扫描装置配合以指示气体在目标区域中的位置。

    Fourier-transform spectrometers
    7.
    发明申请
    Fourier-transform spectrometers 审中-公开
    傅里叶变换光谱仪

    公开(公告)号:US20080068612A1

    公开(公告)日:2008-03-20

    申请号:US11805897

    申请日:2007-05-26

    CPC classification number: G01J3/4537 G01J2003/061 G01J2003/062 G01J2003/067

    Abstract: A novel tilt-insensitive interferometer geometry is described. The design uses tilt-insensitive optics to simultaneously maintain high throughput and precise interferometric alignment, even in the presence of non-ideal scanning motions. A variety of enhancements to the basic design are described, providing a family of related interferometer designs. These spectrometers have applications in spectrometry, spectral imaging and metrology.

    Abstract translation: 描述了一种新颖的倾斜不敏感干涉仪几何形状。 该设计使用倾斜不敏感光学器件,即使在存在非理想扫描运动的情况下,也能同时保持高通量和精确的干涉测量对准。 描述了对基本设计的各种增强,提供了一系列相关的干涉仪设计。 这些光谱仪具有光谱,光谱成像和计量学应用。

    Photodiode array spectrometer
    8.
    发明公开
    Photodiode array spectrometer 失效
    Spektrometer mit Photodiodenanordnung。

    公开(公告)号:EP0320530A1

    公开(公告)日:1989-06-21

    申请号:EP87118796.9

    申请日:1987-12-18

    Abstract: A photodiode array spectrometer for determining the spectral composi­tion of a polychromatic beam of radiation comprises diffraction means (10) which generate from the polychromatic beam a diffracted beam with a plurality of spatially separated diffracted rays of different wavelengths (λ₁ ,λ₂ ,λ₃ ) . A photodiode array (11) receives the dif­fracted beam whereby each photodiode intercepts a different spectral portion of the beam. A rotatable transparent plate (8) is provided in the beam path in front of the diffraction means (10) which, due to refraction of the beam upon entering and leaving the plate (8), per­mits to vary the direction of the beam impinging on the diffraction means (10) and therefore the direction of the diffracted beam in small steps depending on the angle of rotation of the plate (8). By the stepwise displacement of the diffracted beam across the photodiode array (11) , a better sampling of the diffracted beam and therefore an improved spectral resolution is achieved. The invention can be used in the spectrometric analysis of a sample contained in a sample cell (5), whereby the sample cell is irradiated with polychromatic light from a light source (1).

    Abstract translation: 用于确定多色辐射光束的光谱组成的光电二极管阵列光谱仪包括衍射装置(10),其从多色光束产生衍射光束,其具有多个不同波长(λ1,λ2,λ3)的空间分离的衍射光线 )。 光电二极管阵列(11)接收衍射光束,由此每个光电二极管截取光束的不同光谱部分。 可旋转的透明板(8)设置在衍射装置(10)前面的光束路径中,由于光束在进入和离开板(8)时由于折射而允许改变射入的光束的方向 衍射装置(10),并因此衍射光束的方向取决于板(8)的旋转角度而以小的步长。 通过衍射光束跨越光电二极管阵列(11)的逐步位移,实现了衍射光束的更好采样,从而实现了改进的光谱分辨率。 本发明可以用于样品池(5)中包含的样品的光谱分析,由此用来自光源(1)的多色光照射样品池。

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