- Electric field proximity sensing
Electric Field Proximity Sensing or EFPS is a sensory system that relies on the fact that an electric field can be perturbed by the existence of a nearby object, provided it is at least slightly conductive.
EFPS systems today are used in a wide variety of industrial and commercial applications, including automobile airbag systems (to determine where passengers are seated), in advanced robotic manipulators (to determine the properties of an object in the manipulator's grasp), and in home automation, to determine which rooms are occupied.
This is the same sensing system that is used by the
electric catfishto navigate through muddy waters.
[http://www.bik.com/ The People Detector]
[http://www.robotliving.com/2007/09/18/senses-working-overtime/ Senses Working Overtime]
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