ELECTROMAGNETIC RADIATION DETECTOR USING A PLANAR GOLAY CELL

    公开(公告)号:US20180299330A1

    公开(公告)日:2018-10-18

    申请号:US15767100

    申请日:2016-10-06

    CPC classification number: G01J5/42 G01J5/0853 G01J2005/425 G01N21/3518

    Abstract: Embodiments relate generally to electromagnetic radiation detector devices, systems, and methods using a planar Golay cell. One device includes a cell body forming a cavity therein, wherein the cavity includes a wavelength selective absorber having a predetermined absorption spectral range and the cavity is filled with a gas and a pressure sensing element fluidly connected to the cavity to measure a change in pressure within the cavity. One device may include a plurality of planar Golay cells, wherein the cell bodies of the Golay cells are stacked against one another, wherein the pressure sensing elements of the Golay cells are located adjacent to the stacked sides of the cell bodies, and wherein radiation from a single light source is directed through the plurality of Golay cells.

    Measuring instrument for determining the scattering and absorption
coefficient of the atmosphere
    2.
    发明授权
    Measuring instrument for determining the scattering and absorption coefficient of the atmosphere 失效
    用于确定大气的散射和吸收系数的测量仪器

    公开(公告)号:US5024526A

    公开(公告)日:1991-06-18

    申请号:US333392

    申请日:1989-04-05

    Abstract: A measuring instrument for simultaneous in situ determination of the spectral scatting and absorption coefficient, which can also be called an extinction meter, has a modulated light source and an optical system encompassing the hemisphere; the optical system has a multiply folded ray path with a focal point in the volume to be measured, and through this system the measurement signal is projected to detectors. The scattering measurement signals, which are maximally enlarged in this way, are then separated from those for the absorption. The extinction meter also has not only an integrating nephelometer for monitoring purposes but also a transmission meter for low transmission factors. Because of the small three-dimensional size and the streamlined shape of the measuring portion of the extinction meter, the extinction meter can be carried in aircraft and surface vehicles. Because of the disposition of the optical system, the error in the measurement values is negligible, in comparison with other instruments with which only the scattering coefficient can be determined. Moreover, the calibration value during a measurement phase can be determined both automatically and manually. Contamination of the instrument with gas to be measured is reduced, by the stabilization of a turbulence ring by means of baffles. Moreover, interference with the flowing aerosol on the part of the instrument is largely eliminated via a hoop-like hood functioning like a wing-tip slot.

    Abstract translation: 用于同时原位测定光谱散射和吸收系数的测量仪器(也称为消光计)具有调制光源和包围半球的光学系统; 该光学系统具有在要测量的体积中具有焦点的多重折叠的光线路径,并且通过该系统将测量信号投影到检测器。 然后以这种方式最大化地扩散的散射测量信号与用于吸收的散射测量信号分开。 灭火表不仅具有用于监测目的的积分浊度计,而且还具有低传输系数的传输仪表。 由于消光表的测量部分具有小的三维尺寸和流线型的形状,所以消光计可以被携带在飞机和地面车辆中。 由于光学系统的配置,与其中只能确定散射系数的其他仪器相比,测量值的误差可以忽略不计。 此外,可以自动和手动地确定测量阶段期间的校准值。 通过挡板稳定湍流环,仪器与待测气体的污染减少。 此外,通过像翼尖槽一样的环形罩大大消除了对仪器部分流动的气溶胶的干扰。

    Thermal image dynamic range expander
    3.
    发明授权
    Thermal image dynamic range expander 失效
    热图像动态范围扩展器

    公开(公告)号:US4634870A

    公开(公告)日:1987-01-06

    申请号:US730880

    申请日:1985-05-06

    CPC classification number: G01J5/42 G01J9/02 H04N5/33

    Abstract: A gas cell array absorbs infrared energy radiated by a viewed scene. A la interferometer has its resultant intensity changed by the cell's changing length. This is monitored by a vidicon tube that feeds the signal to a digitizer and onto a video display. The incident infrared radiation is chopped into quantized amounts of energy and memory units receive the digitized output of the vidicon tube. Subtractors receive vidicon tube signals simultaneously with quiescent reference levels data. The subtractors form a difference signal by subtracting the quiescent reference level signal from the immediate signal being passed to control threshold detectors. An extended dynamic range of 1,000:1 is accomplished for the preferred embodiment.

    Abstract translation: 气体电池阵列吸收观看场景辐射的红外能量。 激光干涉仪的结果强度随着细胞变化的长度而改变。 这是通过将信号馈送到数字转换器和视频显示器的视频管来监视的。 将入射的红外辐射切成量化的能量,并且存储单元接收视频管的数字化输出。 减法器与静态参考电平数据同时接收视频管信号。 减法器通过从传递给控制阈值检测器的即时信号减去静态参考电平信号来形成差分信号。 对于优选实施例,实现了1,000:1的扩展动态范围。

    Terahertz-infrared ellipsometer system, and method of use
    6.
    发明授权
    Terahertz-infrared ellipsometer system, and method of use 有权
    太赫兹红外椭偏仪系统及其使用方法

    公开(公告)号:US08934096B2

    公开(公告)日:2015-01-13

    申请号:US13506707

    申请日:2012-05-11

    Abstract: The present invention relates to ellipsometer and polarimeter systems, and more particularly is an ellipsometer or polarimeter or the like system which operates in a frequency range between 300 GHz or lower and extending to higher than at least 1 Tera-hertz (THz), and preferably through the Infra-red (IR) range up to, and higher than 100 THz, including: a source such as a backward wave oscillator; a Smith-Purcell cell; a free electron laser, or an FTIR source and a solid state device; and a detector such as a Golay cell; a bolometer or a solid state detector; and preferably including at least one odd-bounce polarization state image rotating system, and optionally including a polarizer, at least one compensator and/or modulator, in addition to an analyzer.

    Abstract translation: 本发明涉及椭偏仪和偏振计系统,更具体地说,涉及在300GHz以下的频率范围内并延伸至高于至少1Tera-Hz(THz)的椭偏仪或偏振计等。 通过红外(IR)范围,高达100THz,包括:诸如反向波振荡器的源; 史密斯 - 珀塞尔细胞; 自由电子激光器或FTIR源和固态器件; 和诸如Golay细胞的检测器; 测辐射热计或固态检测器; 并且除了分析器之外,还优选地包括至少一个奇数反弹偏振态图像旋转系统,并且可选地包括偏振器,至少一个补偿器和/或调制器。

    Flame sensors and methods of sensing flame
    7.
    发明授权
    Flame sensors and methods of sensing flame 失效
    火焰传感器和感测火焰的方法

    公开(公告)号:US5464980A

    公开(公告)日:1995-11-07

    申请号:US193125

    申请日:1994-02-14

    CPC classification number: F23N5/08 G01J5/0014 G01J5/42

    Abstract: A flame sensor comprises a cell (10) containing an infra-red absorptive fluid such as carbon dioxide gas. Heating caused by absorption of the infra-red radiation is detected by measuring a resulting temperature or pressure change.

    Abstract translation: PCT No.PCT / GB92 / 01497 371日期1994年2月14日 102(e)日期1994年2月14日PCT提交1992年8月13日PCT公布。 出版物WO93 / 04346 日期:1993年3月4日。火焰传感器包括含有红外吸收流体如二氧化碳气体的电池(10)。 通过测量所得到的温度或压力变化来检测由红外辐射的吸收引起的加热。

    Thermal image forming device comprising pneumatic infrared detectors
    8.
    发明授权
    Thermal image forming device comprising pneumatic infrared detectors 失效
    热成像装置包括气动红外探测器

    公开(公告)号:US4306150A

    公开(公告)日:1981-12-15

    申请号:US82396

    申请日:1979-10-05

    Applicant: Wolfgang Dietz

    Inventor: Wolfgang Dietz

    CPC classification number: G01J5/42 G02B23/12

    Abstract: A device for optically displaying thermal image scenes, comprising pneumatic infrared sensors, for example, temperature-sensitive gas cells. A mosaic of thermal IR sensors, which is arranged on an infrared-transparent plate and which picks up the thermal image scene, is arranged in front of a reference plate whose inclination can be adjusted and which is irradiated by optical light. The interference patterns produced are picked up by an optical system. Thermal drift is suppressed by providing the IR sensors in a hermetically sealed chamber.

    Abstract translation: 一种用于光学显示热图像场景的装置,包括气动红外传感器,例如温度敏感气室。 布置在红外透明板上并拾取热像场景的热红外线传感器的马赛克布置在参考板的前面,其参考板的倾斜度可以被光学照射。 产生的干涉图案由光学系统拾取。 通过将IR传感器设置在气密密封的室中来抑制热漂移。

    Light intensity calorimeter
    10.
    发明授权
    Light intensity calorimeter 失效
    光强度计

    公开(公告)号:US3670570A

    公开(公告)日:1972-06-20

    申请号:US3670570D

    申请日:1971-04-30

    Applicant: TRW INC

    Inventor: BRIONES ROBERT A

    CPC classification number: G01K17/003 G01J5/42

    Abstract: A calorimeter for measuring high-energy pulsed laser light. The light is absorbed by a suitable liquid which causes a molecular expansion. The liquid may be permitted to expand and the change of volume may be measured by a capillary tube. Alternatively, if the liquid is not permitted to expand, the rising pressure may be measured. This obviates the usual waiting period needed for a temperature equilibrium to be reached in conventional calorimeters.

    Abstract translation: 用于测量高能脉冲激光的量热计。 光被合适的液体吸收,导致分子膨胀。 可以允许液体膨胀,并且可以通过毛细管来测量体积的变化。 或者,如果不允许液体膨胀,则可以测量上升压力。 这消除了在常规量热计中达到温度平衡所需的通常等待时间。

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