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    • 10. 发明申请
    • UV radiation meter using visible light sensors
    • 紫外线辐射计使用可见光传感器
    • US20070108389A1
    • 2007-05-17
    • US11280144
    • 2005-11-15
    • Jakke MakelaTimo KolehmainenTimo TokkonenKai Ojala
    • Jakke MakelaTimo KolehmainenTimo TokkonenKai Ojala
    • G01J1/42
    • G01J1/429G01J1/02G01J1/0219G01J1/0488
    • An apparatus for quantifying irradiance has a first sensor having an output for providing a reference signal of irradiance within a first band, such as the visible light band. A filter and a second sensor are in optical series so that irradiance sensed at the second sensor is filtered. The second sensor outputs a filtered signal of irradiance within the first band. The filter particularly filters irradiance in the first band as a function of irradiance in the second band, such as the UV light band. In an exemplary embodiment, the filter is made from a material that darkens with increasing UV irradiance. A processor has inputs coupled to the outputs of the first and second sensors for determining irradiance in the second band from the reference signal and the filtered signal. Mathematical formulations for the processor are provided, as are methods and a computer program embodied on a medium. A single sensor embodiment is also described.
    • 用于量化辐照度的装置具有第一传感器,其具有用于在诸如可见光带之类的第一频带内提供辐照度的参考信号的输出。 过滤器和第二传感器是光学系列,使得在第二传感器处感测到的辐照度被过滤。 第二传感器在第一频带内输出辐照度的滤波信号。 滤波器特别地将第一频带中的辐照度作为第二频带中的辐照度的函数,例如UV光带。 在示例性实施例中,过滤器由随着紫外线辐照度增加而变暗的材料制成。 处理器具有耦合到第一和第二传感器的输出的输入,用于根据参考信号和滤波信号确定第二频带中的辐照度。 提供了用于处理器的数学公式,以及在介质上实现的方法和计算机程序。 还描述了单个传感器实施例。