METHOD MEASURING SPEED OF MOTION OF CURRENT-CARRYING CONDUCTOR Russian patent published in 2003 - IPC

FIELD: measurement technology, measurement of speed of rectilinear motion of current-carrying conductors. SUBSTANCE: method measuring speed of motion of current-carrying conductor across section between two identical variable reluctance position pickups with bell-shaped transfer characteristic is based on uninterrupted measurement of signals U1, U2 of disturbance of two above-mentioned pickups by field of moving conductor. Value of scaling coefficient X_e numerically equal to value of motion of conductor corresponding to change of output signal of position pickup by factor of e is assumed before start of measurement. In accordance with invention current i flowing through conductor is continuously measured in conductor in process of speed measurement and speed v of motion of current- carrying conductor is found as where is constant coefficient; μ₀ = 4π•10^-7 is magnetic constant; NS_p is correspondingly number of turns and area of section of coil of variable reluctance pickup. EFFECT: increased noise immunity of method measuring speed of motion of current-carrying conductor. 1 dwg