| 辐射计检测绝缘子污秽的天线温度模型 |
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| 引用本文： | 高强,曾常安,贾峥.辐射计检测绝缘子污秽的天线温度模型[J].华北电力大学学报,2007,34(6):92-96. |
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| 作者姓名： | 高强 曾常安 贾峥 |
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| 作者单位： | 华北电力大学,电气与电子工程学院,河北,保定,071003;华北电力大学,电气与电子工程学院,河北,保定,071003;华北电力大学,电气与电子工程学院,河北,保定,071003 |
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| 摘 要： | 根据微波辐射特性,提出了基于污秽物在微波波段的辐射特性差异来检测绝缘子绝缘状况的方法,其原理是绝缘子上有污秽物时发射率会随污秽量和污秽性质变化导致辐射计天线温度的变化,并在三层媒质模型基础上建立了辐射计检测绝缘子污秽的天线模型,给出了天线温度与等值盐密和观察角之间的定量关系,并将数值计算结果与实际测量结果进行了比较,其结果基本一致。
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| 关 键 词： | 辐射计 绝缘子 污秽 等值附盐密度 天线模型 |
| 文章编号： | 1007-2691（2007）06-0092-05 |
| 收稿时间： | 2007-01-05 |
| 修稿时间： | 2007年1月5日 |
Antenna temperature model of insulators contamination detected by radiometer |
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| GAO Qiang,ZENG Chang-an,JIA Zheng.Antenna temperature model of insulators contamination detected by radiometer[J].Journal of North China Electric Power University,2007,34(6):92-96. |
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| Authors: | GAO Qiang ZENG Chang-an JIA Zheng |
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| Abstract: | According to the properties of microwave radiation,this paper proposed a new method to detect the pollution on insulators by microwave radiometer based on the pollution's radiation characteristic.The emissivity change along with the pollution's quantity and property,finally the radiometer antenna temperature will change.Based on the three-layer media model,the antenna temperature model of insulators contamination detected by radiometer was established.This model proposed the quantitative relations among the antenna temperature,ESDD(Equivalent Salt Deposit Density) and incident angle.The results of numerical calculation agree well with the measured results. |
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| Keywords: | radiometer insulators contamination ESDD antenna temperature model |
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