公开(公告)号：US3825760A

公开(公告)日：1974-07-23

申请号：US34330873

申请日：1973-03-21

申请人： NASA

发明人： FLETCHER J ,  WALKER D ,  CORNISH S ,  TURNAGE J ,  LINFORD R

IPC分类号： G01T7/12 ,  G01T1/16

CPC分类号： G01T7/125

摘要： A detector of ultraviolet radiation for operation in a space vehicle which orbits through high-intensity radiation areas. Two essentially identical ultraviolet sensor tubes are mounted within a shield which limits, to acceptable levels, the amount of proton radiation reaching the sensor tubes. The shield has an opening which permits ultraviolet radiation to reach one of the sensor tubes, hereafter referred to the sensing tube. However, the shield keeps ultraviolet radiation from reaching the other sensor tube, hereafter referred to as the reference tube. Both sensor tubes receive approximately the same amount of proton radiation, but the sensing tube also is able to receive ultraviolet radiation. The circuitry of the detector subtracts the output of the reference tube from the output of the sensing tube. Therefore, any portion of the output of the sensing tube which is due to proton radiation is offset by the output of the reference tube. Consequently, the output of the circuitry of the detector is proportional to the amount of ultraviolet radiation reaching the sensing tube. A delay circuit in the detector prevents false alarms by keeping statistical variations in the proton radiation sensed by the two sensor tubes from developing an output signal.

摘要翻译： 用于在高强度辐射区域上运行的太空车辆中的紫外线辐射检测器。 两个基本上相同的紫外线传感器管安装在屏蔽内，限制达到传感器管的质子辐射量的可接受水平。 屏蔽件具有允许紫外线辐射到达传感器管之一的开口，此后称为传感管。 然而，屏蔽层可以防止紫外线辐射到达另一传感器管，以下称为参考管。 两个传感器管都接收到大致相同数量的质子辐射，但感测管也能够接收紫外线辐射。 检测器的电路从传感管的输出中减去参考管的输出。 因此，由于质子辐射导致的感测管的输出的任何部分被参考管的输出偏移。 因此，检测器的电路的输出与到达传感管的紫外线辐射量成比例。 检测器中的延迟电路通过保持由两个传感器管感测到的质子辐射的统计变化而不产生输出信号来防止误报警。