Globe Anemo-radiometer

Globe Anemo-radiometer
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球形风速辐射计

DOI:
10.1007/s10546-014-0003-7
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发表时间:
2015
期刊:
Boundary- Layer Meteorology
影响因子:
--
通讯作者:
R
R
中科院分区:
--
文献类型:
--
作者:
Nakayoshi;M.;Kanda M.;and de Dear;R

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我们报告一种新的传感技术,风速和短波和长波辐射通量(分别)被称为“地球仪风速辐射计”(GAR)。GAR预期用于沿沿着个人路径进行移动的观测。该设备经过精心设计,具有紧凑、轻便、全向和低功耗的特点。GAR通过求解具有不同表面性质的三个地球仪温度计的热平衡方程来计算传热系数。通过实验确定了三种地球仪温度计的最佳组合,即黑色地球仪温度计、白色地球仪温度计和黑色地球仪温度计(球内有热源)。使用经验回归对进行了评价,并将努塞尔数和雷诺数之间的关系实验回归为从到的转换,并将结果与文献中的先前值进行了比较。GAR作为一个固定的传感器的性能进行了评估,在现场和风洞实验,并与参考气象传感器。GAR测定的准确度在1分钟的时间范围内取平均值,和的准确度,应用5分钟的移动平均值,分别为19和15 W m。地球仪温度计的准确性和响应延迟都可能是误差来源。
We report on a new sensing technology for wind speedand shortwave and longwave radiation fluxes (and, respectively) known as a “globe anemo-radiometer” (GAR). The GAR is intended for portable use in mobile observations along individual human pathways. The device was carefully designed to be compact, light, and omnidirectional, with low power consumption. The GAR evaluates the heat transfer coefficient, andby solving the simultaneous heat balance equations of three globe thermometers with different surface properties. The optimal combination of the three globe thermometers, namely a black globe thermometer, a white globe thermometer, and a black globe thermometer with a heat source inside the sphere, was determined experimentally.was evaluated using the empirical regression ofagainst, with the relationship between the Nusselt number and Reynolds number experimentally regressed for the conversion fromto, and the result compared with previous values from the literature. The performance of the GAR as a stationary sensor was evaluated in both field and wind-tunnel experiments and compared with that of reference meteorological sensors. The accuracy of determiningobtained by the GAR wasaveraged over a 1-min time frame, and that ofand, applying a 5-min moving average, 19 and 15 W mrespectively. Both the accuracy and response delay of the globe thermometers were possible sources of error.
DOI: --
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