v. Umbria, 16 - Pescarito
Industrial Zone
10099 San Mauro T.se TORINO, ITALY
tel.(++39) 011 223 68 38 fax: (++39) 011 223 68 63.
e-mail: noise@boscoitalia.it
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INDIVIDUAL NOISE PROTECTION WITH ACTIVE CONTROL
A.SONIC ear muffs with active noise control.
A system of individual protection capable of attenuating even low frequency noise.
The A-SONIC is an advanced technology piece of equipment for the protection of hearing, specifically designed for noisy work places such as aviation fields, textile industries, cement plants, engine testing rooms, steel works, heating plants, roto offset printing works, panel beating works, etc.Prolonged and constant exposure to this kind of noise caused various physiological and psychological problems.
Operating Principles:
The A-SONIC ear muffs use two complementary attenuation systems: the passive
protection attenuates noise at frequencies above 500 hertz and the "active"
reduction technology (cancellation of the electronic signal) for noises between
30 and 500 hertz, which cannot be efficiently attenuated with passive systems.The
"active" part of the system functions as follows:* the microphones
located in each ear protector reveals low frequency noise;* the microprocessor
analyses this data regenerating in real time a wave of opportune width and phase;*
this "anti-noise" wave is transmitted by the amplifier to the loudspeaker
situated in the ear protector;* when the original noise and that of the "anti-noise"
meet the disturbing signal and the global acoustic pressure undergoes a considerable
attenuation before it reaches the ear.The active system adapts continually according
to the variations in environmental noise.
SOUNDPROOF CLADDING FOR INTERIORS
The technique
of Soundproof Cladding makes it possible to attain considerable reductions
in environmental noise, since the reflected or reverberated acoustic energy
is almost completely eliminated.
The operation consists
of installing special soundproofing elements, which guarantee a high coefficient
of absorption (AS) on the walls and ceiling.
The elements used
for the cladding of the walls have an external layer in steel with various
finishes (stainless steel, aluminium, zinc coated, pre-painted, etc.) 6/10
cm thick.
These systems are widely used in the food industry, panel beating, the packing
industry and carpentry shops. The ceiling cladding includes soundproofed elements
known as baffles.
As is known
all the surfaces surrounding a tunnel contribute
to amplify the noise generated by road traffic.
The soundproofing consists of applying noise reducing cladding to the walls and ceiling, coordinate with special paving.In this manner the tunnel becomes a dissipating silencer which makes it possible to considerably reduce the sources of linear noise represented by the traffic.
SCHALLSTOP ACOUSTIC BARRIERS FOR EXTERIORS
The SCHALLSTOP acoustic barriers have been designed to acoustically and physically isolate those sources of noise situated in a free area, such as for example: refrigerator compressors, transformers of electrical energy; condensers and all types of machinery and system installed outdoors.
They have a support system
in steel and noise reduction and soundproofing elements.
SUPPORT STRUCTURES
Steel section Fe 360 (UNI 7070/83) complete with plates, counterplates and
log bolts for fixing at the base.
NOISE REDUCTION
AND SOUNDPROOFING ELEMENTS
External cladding in prepainted, light alloy (Al Mg2 Mn).The part towards
the source of noise is perforated. The part towards the reception point is
ribbed in order to forma an monolithic whole of considerable mechanical resistance.
The internal padding is in bakelited volcanic rock fibre, nonflammable, rotproof
and protected on the surface with dustproof fabric.
EKOKIT ACOUSTIC
BARRIERS FOR EXTERIORS
Thanks to the patented profiles in extruded aluminium the EKOKIT barriers
offer both excellent acoustic performance and attractive appearance. Their
lightweight but strong bearing structure is especially suitable for installation
on viaducts and bridges or in any situation where weight is an important factor.
SUPPORT STRUCTURE
The profiles are in curved, box section aluminium. Inside the profiles are
noise reduction and soundproofing elements placed vertically. Thanks to the
special profile (dap jointed), the vertical elements guarantee perfect acoustic
performance.
NOISE REDUCTION AND SOUNDPROOFING PANELS
EKOKIT noise reduction and soundproofing elements consist of an external
surface in prepainted galvanised steel, using the COIL-COATING procedure.
TRANSPARENT SOUNDPROOFING PANELS
The transparent panels can be of polycarbonate or metacrylic. In both cases
raw materials of the highest quality and highly resistant to U.V.A. rays are
used.
e-mail: noise@boscoitalia.it