High-Quality Piezo Elements as Sound Transducers in the Airplane Doors: on Tour with the A380

In the Antiquity, flying was only the privilege of the gods but today,
travelling by air is taken for granted. The motto is larger, faster and
further. However, the requirements on the components used in airplane
technology are increasing because above all, safety has the highest
priority. Whatever may be used in the airplane must be “airworthy” which
means it must be reliable, durable and on top of that, as small and light
as possible. This also applies to sound transducers that generate
acoustic signals or warning sounds during automatic processes such as
closing the cabin doors of the Airbus A380.


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