Abstract
A non-contact technique to measure the electrical resistivity of levitated samples is reported. The technique utilizes the principle of the asynchronous induction motor, measuring the induced torque by applying a rotating magnetic field to the sample. Relation between sample size and induced torque was experimentally checked with aluminum samples and proved that induced torque is proportional to the fifth power of the sample radius. Based on this result, the electrical resistivity of solid zirconium at high temperatures was measured and showed a good agreement with literature data.
