罗氏线圈(Rogowski Coil)，全称罗哥夫斯基线圈，由于罗氏线圈不含铁芯，也称空心线圈。

罗氏线圈是一个均匀缠绕在非铁磁性材料上的环形线圈。输出信号是电流对时间的微分。通过一个对输出的电压信号进行积分的电路，就可以真实还原输入电流。该线圈具有电流可实时测量、响应速度快、不会饱和、几乎没有相位误差的特点，故其可应用于继电保护，可控硅整流，变频调速，电阻焊等信号严重畸变以及电炉、短路测试、雷电信号采集等大电流的场合。

配合积分器提供的香蕉形插头、BNC接头，能够方便接入采集板卡、示波器和万用表等测量仪器。

Rogowski Coil isa flexible current probe utilizing the Rogowski principle，which issuitable to conveniently measure single and three phase AC as well as pulsed DCcurrents. After appropriate signal conditioning,it can be used with digital multimeters, recorders and other suitable equipmentto measure current from very low frequencies up to 1MHz.

The probes comprise a flexible air–cored sensor which can be opened,allowing them to be installed around a primary conductor without interruptingthe circuit. The flexible and lightweight measuring head allows quick and easyinstallation in hard to reach areas and with large conductors.