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ポッケルス素子を用いた誘導電界の光学的測定

机译:使用普克尔斯元件对感应电场进行光学测量

摘要

The induced toroidal electric field is measured optically by using a Pockels device. The electric field induced by the conventional transformer method is generally smaller than 100V/cm and, in this works, a transformer with the multiple primary coils has been used for the field induction. On the measurement the electric field is much smaller in the Pockels device than in air due to the large permittivity (εs-56). In order to avoid the decrease in the sensitivity the measurement system has been put in water (εs-82). The retardation by Pockels effect is of the order of 10-2 and the measurement values of the induced electric field are 40-200V/cm which are agreed with those calculated from one turn voltage within about 20%.
机译:感应的环形电场通过使用Pockels装置进行光学测量。通过常规变压器方法感应的电场通常小于100V / cm,并且在这项工作中,具有多个初级线圈的变压器已用于场感应。在测量中,由于介电常数(εs-56)大,普克尔斯装置中的电场要比空气中的电场小得多。为了避免灵敏度降低,已将测量系统放入水中(εs-82)。普克尔斯效应的延迟约为10-2,感应电场的测量值为40-200V / cm,与从大约20%的一圈电压计算得出的结果相符。

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