"Bringing the world together to meet one another". To uphold this motto and fly more commuters, the aviation industry is introducing larger capacity aircrafts to its existing fleet. The Airbus A380 one-class configuration can fly as many as 840 passengers and is considered the largest airliner ever built. Lengthwise, it nearly stretches from goal line to goal line of a football field while its wing tips would hang well beyond the sidelines. As amazing as it will be for this behemoth to take off into the air, the A380 faces significant challenges on the ground as well. To integrate into existing airport-dockings, new aerobridges are designed for smooth automatic approach and retrench using ultrasonic sensors.
Aerobridges are permanently attached at one end by a pivot to the airport terminal building an have the ability to swing left or right, to be raised or lowered an extended or retracted in order to accommodate aircrafts of different sizes and contours. The smooth movement of the aerobridge greatly depends on the linearity and repeatability of the feedback sensors. A marginal error can cause great damages to multi-million dollar aircraft. Moreover the sensors have to work in demanding open environmental conditions.