5. Electric Motor Optimization
Reduction of drone noise depends much on advanced electric motor design. New brushless motor technologies minimise running noise by including magnetic field optimisation and better commutation patterns. Advanced bearing systems and specialised motor windings created by engineers lower mechanical friction and vibration. Sophisticated algorithms in electronic speed controllers (ESCs) maximise motor performance and reduce acoustic emission. By spreading the load, distributed motor systems help to lower the noise source concentration. Comparatively to traditional motor designs, these improvements have resulted in noise reduction of up to 30%.
