A pressure sensor and pressure-sensing catheter in which a deformable pressure sensing membrane is separated from an inner metalized surface on a rigid support by an air gap. The hub is primarily comprised of a metal, and extends from the second side of the flange, and has an inner surface and an outer surface. The graphics processor may be configured to generate a plurality of samples. Based on the second value, the system services the packets of encoded audio speech from the second client using a second processing level, which is different from the first processing level. Electrostatic charges produced on the printed circuit board can be conducted to the bottom case through the counterbalance member, and then to ground. The FeNi alloy containing from 30-50% of Ni, the balance consisting of iron and unavoidable impurities, has cold working temper of not less than 30% and not more than 57% of the final working degree.