Experiment on Water Resistances with Different Structures Used as the Load of Folded Plates Blumlein Line
Experiment on Water Resistances with Different Structures Used as the Load of Folded Plates Blumlein Line
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不同结构作为折板Blumlein线荷载的耐水性试验
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
Ouyang, Jia
中科院分区：
文献类型：
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作者：
Feng, Jia-Huai;Zhan, Tian-Wen;Liu, Yong-Gui;Wang, Ming-Xing;Liu, Jin-Liang;Ouyang, Jia
为了选择合适的折板Blumlein线的水阻负载，设计制作了三种不同结构的水电阻作为折板Blumlein线的负载，对这些水电阻的电容和电感进行了理论计算和仪器测量，采用等效电路法模拟了这些水电阻作为折板Blumlein线的负载对电压和电流波形的影响，并在实验中测量了负载的电压和电流波形。圆柱形电阻具有较大的电容（2.2 nF）和电感（80 nH），对输出波形的平顶影响较大。扁平电阻具有电容较小（0.47 nF）、电感最低（25 nH）的优点。实验中波形平顶优于圆柱形水电阻。扁平电阻的结构不利于折叠Blumlein线的安装，具有较大的波形平顶性能。体积可容纳较多的CuSO4溶液，且散热良好，可作为重复频率同轴Blumlein线的负载。U形电阻具有电容最小（0.05nF）、电感较低（30nH）、对波形影响较小的优点。波形平顶平滑，波形浪涌小。U形电阻的结构适合折叠式Blumlein因此可以是折叠式Blumlein线的荷载。因此后两者可以作为整个系统不同安装要求的匹配荷载。
In order to choose appropriate water resistance load of folded Blumlein line,three water resistances with different structures used as the load of folded plate Blumlein line are designed and manufactured.The capacitance and inductance of these water resistances are calculated in theory and measured with instrument.The influences of these water resistances as the loads of folded plate Blumlein line on the voltage and current waveforms are simulated by means of equivalent circuit method.The voltage and current waveforms of the loads are also measured in experiment.The results indicate that the water resistance with cylindrical shape has large capacitance(2.2 nF) and inductance(80 nH) which greatly influences the flat-tops of output waveforms.The resistance with flat shape has virtues of smaller capacitance(0.47 nF),lowest inductance(25 nH).The flat top of the waveforms is superior to that of the water resistance with cylindrical shape in the experiment.The structure of the resistance with flat shape make against the installation of the folded Blumlein line,and it has large cubage to hold more CuSO4 solution as well as good heat-dissipation,so it can be the load of coaxial Blumlein line with repeat frequency.The resistance with U shape has virtues of smallest capacitance(0.05 nF),lower inductance(30 nH),and less influence on the waveforms.The flat top of the waveforms is smooth and the surge of the waveforms is small.And the structure of the resistance with U shape is suitable for the folded Blumlein line.Thus it can be the load of folded Blumlein line.Therefore the latter two can be used as match load in different installation requests of the whole system.