Ruag Schweiz Ag

Rocket Science Ag

Philippe Niquille

Devis Tonon

David Schmid

Christian Frick

An active noise control system for reducing the sound pressure level in one or more head areas of one or more seats in the interior of an aircraft fuselage includes multiple accelerometers mounted outside of the aircraft fuselage at or near the mounts of the aircraft's propulsion system. One or more loudspeakers are mounted at the seat and are responsible for the reduction of noise at its head area. The accelerometers continuously measure multiple reference signals during operation of the aircraft and report to a controller that continuously calculates the reported noise signals in the head areas based on the measured reference signals and its counter signals, which equal the amplitude but having opposite phase of the calculated arriving noise signals in each head area. The controller operates one or more actuator systems for continuously generating the counter signals.

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Zug, Switzerland

Philippe Niquille