DEVICE FOR MAGNETIC FIELD REPRODUCTION

摘要

FIELD: measurement equipment.SUBSTANCE: invention represents a device of magnetic field reproduction and is designed for calibration and verification of working measurement facilities for magnetic induction of AC magnetic field. The device includes Helmholtz coils made in the form of two coaxial slab-sided metal frames, contours of which are of polygon shape. In the middle of each side of the polygon there is a cut, where a matching resistor is included in series, and poins of cuts of the frame sides are inputs of an excitation signal of a Helmholtz coil.EFFECT: expanded frequency range of a device to upper frequency with acceptable dimensions of a Helmhotlz coil.2 dwg