Page 66 - Ver_216M_1
P. 66
Silence is a signature of our modules







Structure Semi-anechoic Room
Space 3.95 x 3.95 x 2.5 (m2)

Separated Floating Ground with Zin plated steel

Material Polymer Absorption wedge

Door Fully sealed Pressure Door,
Outdoor Open, lock inside
Regulation ISO 3745

Power ilter 1kW 110V

Cable Belden
Semi-anechoic Instruments CRAS Micophone, IEA,

analyer and system.
Chamber





1/3 Octave Band
Chamber Type
Anechoic chambers are commonly used in f loor that acts as a work surface for Frequency( Hz) Tolerance (dB)
acoustics to conduct experiments in nominally supporting heavy items, such as cars,
"free field" condi- tions. All sound energy will washing machines, or industrial machinery, ≤ 630 ± 1.5
Anechoic
be traveling away from the source with almost rather than the mesh floor grille over 800-5,000 ± 1.0
Chamber
none reflected back. Common anechoic absorbent tiles found in full anechoic ≥6,300 ± 1.5
chamber experiments include measuring chambers. This floor is damped and floating Semi- ≤ 630 ± 2.5
the transfer function of a loudspeaker or the on absorbent buffers to isolate it from outside Anechoic 800-5,000 ± 2.0
Chamber
directivity of noise radiation from industrial vibration or electromagnetic signals. A ≥6,300 ± 2.5
machinery. In general, the interior of an recording studio may utilize a semi-anechoic
anechoic chamber is very quiet, with typical chamber to produce high-quality music, free
noise levels in the 10–20 dBA range. Full of outside noise and unwanted echoes.
anechoic chambers aim to absorb energy in Semi-
all directions. Semi-anechoic chambers have Anechoic
a solid



65
   61   62   63   64   65   66   67   68   69   70   71