为了提高太阳辐照绝对辐射计(SIARs)的测量精度,消除温度变化对SIARs测量精度的影响,研究设计了精密温度控制系统,对SIARs进行恒温控制；通过对铂电阻温度传感器自热效...
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The STIM measures solar irradiance on the satellite without sun-tracking system. Solar irradiance is measured when the sun scans over the field of each absolute radiometer respectively.
太阳辐照度监测仪由三台绝对辐射计构成，它是采用非跟踪太阳的变角测量方法来测量太阳辐照度的。
参考来源 - 太阳辐照度监测仪比对与校正研究Absolute radiometer is an instrument based on the principle of substitution of electrical power for radiation power during total solar irradiance measurements, which can be independent of other radiometric scale.
绝对辐射计是可以不依赖其它辐射标准而用电替代方式直接定标辐射量值的探测器。
参考来源 - 双锥腔互补偿型绝对辐射计（DCICAR）·2,447,543篇论文数据，部分数据来源于NoteExpress
定标是微波辐射计应用中的重要步骤，定标精度直接影响测量的绝对精度。
Calibration plays an important role in the application of microwave radiometer, and the calibration precision exerts profound impacts upon the absolute precision during the measurement.
该方法用低温辐射计测出滤光辐射计的绝对光谱响应，从而使坎德拉的复现成为可能。
The new method is that the absolute spectral response of filter radiometer is measured with cryogenic radiometer, so that makes it possible to reappear candela.
首先低温辐射计采用电替代方法测量单个波长激光绝对光功率，测量不确定度低于0.016%。
Firstly, the laser power was measured by cryogenic radiometer in visible and near infrared spectral regions (488~944 nm), uncertainty of power measurement is less than 0.016%.
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