In this paper, a pulsed wire method (PWM) for magnetic measurements was described. Experimental setup was developed and assembled. The results of measurements on superconductive 38-pole 0.75 T undulator are given. Two different wires were used – 200µm and 140 µm diameter. For 140µm the calibration curve was obtained, wire position sensor has high sensitivity – 0.28 V/µm. A dispersion correction algorithm was applied to the raw data from sensor and corrected signals were given. The results and further works are being discussed.