DEVICE FOR CALIBRATION AND TEST OF ELECTROMAGNETIC VELOCITY CONVERTERS Russian patent published in 2001 - IPC

FIELD: measurement technology. SUBSTANCE: device is intended for calibration and test of large-diameter flowmeters with electromagnetic velocity converters with magnetic circuit of cup-shaped form with ring concavity in bottom part. Device has induction coil in the form of multilayer printed circuit board which carries turns of coil in the form of multiturn flat spiral. Coil has holes to accommodate electrodes of velocity converter. Turns of coil are placed along concentric circumferences with the exception of areas where holes to accommodate electrode are made. Each turn of coil envelopes them along arc. EFFECT: increased accuracy of calibration and test of velocity converters. 2 dwg