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Article Offering: How to license technology from defense laboratories.
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Technology Offering: Unmanned aircraft system with power line detection, identification, and avoidance capability, from the Army Research Laboratory.
Summary: Army scientists and engineers have developed a sensor and software system for detecting energized power lines in the vicinity of an aerial craft. The method includes using sensors located on the aerial craft to measure electric and magnetic fields in the vicinity and determine the orientation of the power line based on these electric and magnetic field measurements. Alternatively, detection can be achieved using a Poynting vector. The Poynting vector is the cross product of the electric field and magnetic field and runs parallel to the lines. Normalized values of the sensor data may further be calculated, as these values can provide consistent detection thresholds vs. distance, regardless of the magnitude of the voltage/current values of the power lines. Contact: Brian Metzger, PhD