参考标准:GB/T 6113.104
Reference standard:CISPR 16-1-4
实验桌的类型、形状和构成的材料都会影响场强的测量结果。应用评估程序来确定这种影响,并对由实验桌引入的标准不确定度进行评估。为了评估实验桌的影响,应使用一特定的发射天线在有和没有实验桌的特定布置的情况下进行两次发射测量。这两次测量结果之差可给出实验桌影响的评估结果。
To evaluate the influence of the set-up table, two transmission measurements are performed: one with the set-up table present, the second with the set-up table absent. During the two measurements, a transmit antenna is maintained in a specific arrangement. The difference between the measurement results with and without the set-up table gives an estimate of the influence caused by the set-up table.
测试布置:
Test arrangement:
矩形实验桌上天线相对于实验桌边缘的位置(俯视)示意图
Position of the antenna relative to the edge above a rectangle set-up table (top view)
试验桌上天线的位置(测视)示意图
Antenna position above the set-up table (side view)
本次验证分别针对潮湿的测试桌,实际使用测试桌,实际使用测试桌面铺玻璃纤维,小尺寸测试桌等4种情况进行测试分析,测试数据如下图。
The validation test table respectively four cases to tested.There are the wooden test table with tide, the actual use of the wooden test table, the actual use of the test table at the glass fibre, the small size of wooden test table.The test data shown as below.
综合测试数据得出结论,除了长时间使用后受潮的木桌测试偏差较大外,其它桌子的测量结果较为稳定。
Comprehensive test data concluded that, in addition to long time use wooden table test deviation from a relatively, the measurement results of other table is stable.
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