The story
Named after Walter Rogowski.
Etymology from Wiktionary, CC BY-SA 4.0.
Rogowski coil
Today it means: An electrical device for measuring alternating current (AC) or high-speed current pulses. It consists of a helical coil of wire with the lead from one end returning through the centre of the coil to the other end, so that both terminals are at the same end of the coil. The whole assembly is then wrapped around the straight conductor whose current is to be measured. Full definition →