»NASA tests shed light on fuel-sensor problems
~ this example shows how important role fuel sensors can play
~ the problem: a loose electrical plug in circuits that carry the signals from sensors that tell NASA whether the shuttle's fuel tank is about to run dry
~ resolution of the sensor problems expected to eliminate the biggest source of launch delays in the last three years
~ the wires, prongs and external sockets were exposed in the laboratory to the pressures and temperatures they feel as fuel fills the tank
~ the electrical signal from the sensor did not get through the equipment
~ the same problem that occurred when Atlantis was gassed up for launch
~ the question remains: why were tests not run before ?
~ fiber optics and ARINC might be a better solution ?

ťAcu-tracŽUltrasonic Fuel Level Sensors
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