Small Rogowski Coil

Principle of Operation

All the Rogowski coils are based on the same principle, described here.

Characterisation and Parameters of Sensor

The main purpose of this Rogowski coil on tokamak GOLEM is to measure currents flowing in various conducting wires. This information can be used, for example in modelling of a magnetic field generated by a set of coils. As can be seen in fig. 1, size of this coil limits its use only for current measurements flowing through small and medium-sized conductors.

Calibration constant, likewise in the case of large Rogowski coil, was determined by empirical (rather than analytical) means to be equal to K = 6.55 10⁶ A V^-1 s^-1.