Method for determining the proportion of at least one material in a
moving mixture of materials
    1.
    发明授权
    Method for determining the proportion of at least one material in a moving mixture of materials 失效
    确定材料移动混合物中至少一种材料的比例的方法

    公开(公告)号:US4374326A

    公开(公告)日:1983-02-15

    申请号:US178420

    申请日:1980-08-15

    IPC分类号: G01T1/178 G01T1/20 G01V5/00

    CPC分类号: G01T1/20 G01T1/178

    摘要: The proportion of a radioactive material in a moving mass of material is determined with a sensor which derives an output signal proportional to the mass of radioactive material. The output signal is calibrated against known reference values to give a quantitative value of mass. Problems associated with inhomogeneity of material distribution are overcome by averaging the sensed radiation over a time period. Background radiation can be sensed to determine sufficiency of material or it can be shielded from the sensor.

    摘要翻译: 运动物质中的放射性物质的比例由一个传感器决定,该传感器产生与放射性物质质量成比例的输出信号。 根据已知参考值对输出信号进行校准,得到质量的定量值。 通过在一段时间内平均感测的辐射来克服与材料分布的不均匀性相关的问题。 可以感测背景辐射以确定材料的充足性,或者可以将传感器屏蔽。

    Radiation detectors supported by resilient optical coupler
    2.
    发明授权
    Radiation detectors supported by resilient optical coupler 失效
    由弹性光耦合器支撑的辐射探测器

    公开(公告)号:US4323778A

    公开(公告)日:1982-04-06

    申请号:US911868

    申请日:1978-06-02

    IPC分类号: G01T1/20

    CPC分类号: G01T1/20

    摘要: A sensor which is robust for use in an industrial environment. The sensor employs two scintillation crystals to offer a sufficient crystal volume and the crystals are optically coupled through a silicone rubber compound. The compound also allows the crystals to vibrate independently so that they do not shatter. A single photomultiplier detects scintillation occurring in all the crystals.

    摘要翻译: 适用于工业环境的传感器。 传感器使用两个闪烁晶体来提供足够的晶体体积,并且晶体通过硅橡胶化合物光学耦合。 该化合物还允许晶体独立振动,使其不破碎。 单个光电倍增管检测所有晶体中发生的闪烁。

    Method of and apparatus for determining the nature of transported
material
    3.
    发明授权
    Method of and apparatus for determining the nature of transported material 失效
    确定运输材料性质的方法和装置

    公开(公告)号:US4359639A

    公开(公告)日:1982-11-16

    申请号:US109309

    申请日:1980-01-03

    IPC分类号: G01N23/12 G01N23/00 G21K1/00

    CPC分类号: G01N23/12

    摘要: A coal/stone mixture transported on a conveyor is investigated by subjecting it to two radiation beams of differing energies. In a preferred embodiment, the higher energy radiation is collimated into a pencil beam and the lower energy radiation into a fan beam. Detector shielding prevents substantial interference of close-to-surface reactions within the detector deriving from the higher energy beam with detection of the lower energy beam.

    摘要翻译: 通过对两个不同能量的辐射束进行研究,研究在输送机上运输的煤/石混合物。 在优选实施例中,较高能量辐射被准直成为笔形束,并将较低能量的辐射准直成风扇光束。 检测器屏蔽防止在较低能量束的检测中得到较高能量束的检测器内的近似表面反应的实质干扰。

    Method of and apparatus for determining the proportion of at least one
material in a moving mixture of materials
    4.
    发明授权
    Method of and apparatus for determining the proportion of at least one material in a moving mixture of materials 失效
    用于确定材料的移动混合物中的至少一种材料的比例的方法和装置

    公开(公告)号:US4275298A

    公开(公告)日:1981-06-23

    申请号:US911247

    申请日:1978-05-31

    CPC分类号: G01T1/20 G01T1/178

    摘要: The proportion of a radioactive material in a moving mass of material is determined with a sensor which derives an output signal proportional to the mass of radioactive material. The output signal is calibrated against known reference values to give a quantitative value of mass. The sensor includes a plurality of scintillation crystals. Problems associated with inhomogeneity of material distribution are overcome by averaging the sensed radiation over a time period.

    摘要翻译: 运动物质中的放射性物质的比例由一个传感器决定,该传感器产生与放射性物质质量成比例的输出信号。 根据已知参考值对输出信号进行校准,得到质量的定量值。 传感器包括多个闪烁晶体。 通过在一段时间内平均感测的辐射来克服与材料分布的不均匀性相关的问题。