The S-Fan Demo is a generic silenced axial-fan equipped with hybrid (both active and passive) noise control means.
This demo can be used to calibrate the S-Cube Development Kit (SCDK™) or to practice on systems where the mechanical medium and ANC components are already well defined. The Demo provides a good comparison between the passive noise reduction and hybrid noise reduction on a single system.
|Dimensions||L=420mm, W=100mm, H=160mm|
|Weight||5kg (Power adaptors ~0.5kg)|
|Noise Reduction||12dB(A) Sound Power (3 Passive + 9 Active)|
|Power adaptors||ANC controller 12V/1.5A (Fan 7.5V, 9V, 12V/5A)|
The SCDK™ provides a do-it-yourself ANR development tool that can be used for the application of loud electronic equipment. Developers and engineers can leverage it to implement noise and vibration reduction. The controller unit integrates all the required function: Sound generator, equalization, amplification and the active adjustment processor. The controller is connected directly to the loudspeakers. The controller allows the designer to reduce up to 10dB reduction in addition to what the acoustic materials will diminish.
Reduction of generator noise during foundation work of new construction site
|Measurement location||Original noise||Noise after installing apparatus|
|10m x 1.5m (H)||67.9 dB (A)||61.7 dB (A)||▼ 6.2 dB (A)|
It is IT Solution of the function that it was optimized with perfect noise shielding and effective cooling efficiency.
The Active Silencer Fan Tray™ (ASFT™) is a fan drawer, designed for assisting ventilation by forcing air into and out of an enclosure, while preventing noise from escaping.
The unit is lined with acoustic material and equipped with Silentium’s proprietary noise-cancelling technology which is highly effective in reducing low-frequency noise. When combined with unique high quality acoustic materials this product achieves unprecedented spatial noise reduction over the entire frequency bandwidth of the audible spectrum.
Noise measurements results (3 inter IMF blade and HP c300 blade server Installation)
|Back door||Front door||ASFT Mode||SwL (dBA)||Remarks|
|Open||Open||Off||84.1||Current (installed) server noise|
|Close||Close||Normal||60||Total noise from rack|
|Close||Close||Maximum||64.5||ASFT maximum operating noise|
Hearing Protection Using IoT-based Active Noise Control Technology
The ANC function and the voice filtering technology are added to the existing hearing protection
so that noise is reduced and communication is possible.