A study of active tonal noise control for a small axial flow fan

Keyphrases

• Noise Control 100%
• Phase Locking 100%
• Rotor Blade 100%
• Tonal Noise 100%
• Small Axial Flow Fan 100%
• Cooling Fan 100%
• Random Noise 50%
• Sound Power 50%
• Microphone 50%
• Power Reduction 50%
• Bandpass Filter 50%
• Phase Delay 50%
• Electret Microphone 50%
• Loudspeaker 50%
• Tachometer 50%
• Low-order Harmonics 50%
• Destructive Interference 50%
• Controllable Amplitude 50%
• Bell Mouth 50%
• Rotation Sensor 50%
• Fan Noise 50%
• Blade Passing Frequency 50%
• Aerodynamic Pressure 50%
• Radiated Sound Power 50%
• Strut number 50%
• Tonal Sound 50%
• Pressure Spectrum 50%
• Rotor number 50%

Engineering

• Rotor Blade 100%
• Axial Flow Fan 100%
• Sound Power 50%
• Radiated Sound Power 50%
• Phase Delay 50%
• Electret 50%
• Blade Passing Frequency 50%
• Bandpass Filter 50%
• Destructive Interference 50%
• Bellmouth 50%
• Tachometer 50%
• Harmonics 50%
• Aerodynamics 50%