FEED-THROUGH FOR GWR MEASUREMENTS IN TANKS

摘要

A coaxial feed-through device (feed-through) for coupling a received process connection to a storage tank (tank) including an inner electrical conductor (probe), an outer electrical conductor; and a dielectric sleeve disposed between the probe and the outer electrical conductor. The dielectric sleeve is configured to provide an upper coaxial transmission line segment (upper CTL segment) providing a substantially 50 ohm impedance and a lower coaxial transmission line segment (lower CTL segment) which includes one or more sub-segments having an impedance that is at least forty (40%) percent higher as compared to the substantially 50 ohm impedance.