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    Clear air turbulence radiometer
    33.
    发明授权
    Clear air turbulence radiometer 失效
    清洁空气湍流式放射仪

    公开(公告)号：US3475963A

    公开(公告)日：1969-11-04

    申请号：US3475963D

    申请日：1968-02-02

    Applicant: BARNES ENG CO

    Inventor： ASTHEIMER ROBERT W

    IPC: G01S3/781 ,  G01S17/95 ,  G01S19/14 ,  G01W1/00

    CPC classification number: G01W1/00 ,  G01S1/02 ,  G01S3/781 ,  G01S17/95 ,  G01W2001/003 ,  Y02A90/19

    Abstract: 1,242,635. Clear air turbulence detectors. BARNES ENG CO. Jan.31, 1969 [Feb.2, 1968], No. 5329/69. Heading G1A. A clear air turbulence detector based on sensing the temperature of the distant atmosphere (40-50 miles) comprises an infrared detector 16, Fig. 5, a chopping and filtering arrangement 20 positioned in front of the detector and having at least two different filters for passing radiation, of two different wavelengths within the broad 15Á carbon dioxide band, one being in the centre of the band in an area of high absorption and the other in a region of relatively low absorption, to the detector which develops signals in accordance with incident radiation, optical means including a movable mirror element 12 for directing radiation from a horizontal line of sight on to the detector and for stabilizing the horizontal line of sight, and, means 34 for indicating the difference in magnitude between the signals. The arrangement is made to operate an alarm 36 at a predetermined difference and to connect a sawtooth generator 38 to the mirror servo input whereby the mirror is made repeatedly to scan vertically in order to determine the relative height of the irregularity. The apparatus may comprise a combined filter chopper having a rotating disc with the differing filters occupying adjacent quadrants, or may have separate chopping and filtering elements. The centre of the 15Á band indicates the temperature in the vicinity of an aircraft which may be carrying the apparatus and the low absorption band indicates distant temperature. The detector may be a hyper immersed thermistor bolometer.

    Abstract translation: 1,242,635。 清澈的空气湍流探测器。 BARNES ENG CO。，1969年1月31日[1968年2月2日]，第5329/69号。 标题G1A。 基于感测远距离大气温度（40-50英里）的清澈空气湍流探测器包括一个红外探测器16， 5，斩波和滤波装置20，位于检测器前面，并且具有至少两个不同的滤光器，用于通过宽广的二氧化碳带内的两个不同波长的辐射，一个位于带的中心的高的区域 吸收，而另一个在相对低的吸收区域，到根据入射辐射产生信号的检测器，光学装置包括可移动镜元件12，用于将来自水平视线的辐射引导到检测器并用于稳定水平 视线，以及用于指示信号之间的幅度差的装置34。 该布置用于以预定的差异操作报警器36，并将锯齿波发生器38连接到反射镜伺服输入端，由此重复地制造反射镜以垂直扫描，以便确定不规则性的相对高度。 该装置可以包括具有旋转盘的组合过滤器斩波器，其中不同的过滤器占据相邻象限，或者可以具有单独的斩波和滤波元件。 15°带的中心表示可能携带设备的飞机附近的温度，低吸收带表示远距离温度。 检测器可以是超级浸入式热敏电阻测辐射热计。

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