Excluding the effect of nonuniformity of the motion velocity in measurement of the length of ferromagnetic samples by the magnetic-label method

The causes and the character of the effect of sample motion velocity on results of the measurement of ferromagnetic sample length by using the magnetic-label technique are discussed. A method to decrease this dependence by correcting the measurement base length depending on velocity is proposed. The method ensures a high precision of measurements for a short base length in a wide range of velocities.