【摘要】 为了解决精确测量小电流这一难题,对传感头Rogowski线圈进行研究设计,通过对制作材料及制作方法上的改进,研制了一种适用于小电流测量的Rogowski线圈作为电流互感器的传感头,并利用后续电路对Rogowski线圈输出的信号进行处理,从而精确测量小电流,并给出试验结果。试验结果表明,该设计方案准确可行,可以使该系统的精度满足国标0.2级标准。更多还原

【Abstract】 In order to solve the difficulty of measuring small current precisely,a Rogowski coil for sensor head of current transformer was designed.By improving the material and manufacturing approach,the Rogowski coil for measuring small current was achieved as sensor head of current transformer.The signal from the Rogowski coil is processed by a circuit.Test was conducted,and the result indicates that this design scheme is feasible to make the precision of the current transformer meet 0.2 grade in the national standard.更多还原