Hemi Anechoic Chambers

Products

Sound Level Meter NOR 103 Sound Level Meters NOR 131/132 Sound Analyser NOR 140 Sound Level Meter NOR 145 Sound and Vibration Analyser NOR 150

Full/Hemi Anechoic Chambers

Eckel Industries Inc. designs, fabricates and installs full and hemi-anechoic chambers to precise specifications for government laboratories, industrial concerns, and leading universities. Fully integrated systems and designs include requirements such as isolated floors, light and power connections, ventilation, temperature and humidity control, instrumentation sleeves, control supports, working floors, and single and double sound doors. Anechoic Chambers are echo-free enclosures with a sound energy absorption level of 99% to 100%, or a reflected sound pressure level of 10% or less. The frequency at which the energy absorption drops below 99%, or the pressure reflection exceeds 10%, is known as the low-frequency cut-off.

The anechoic chamber at Orfield laboratory in Minneapolis, MN is NIST certificate and was designed engineered and constructed by Eckel Industries. This chamber is “The quietest place on earth” according to the Guinness Book or World Records 2005. The ambient noise level was measured at -9.4dBA (typical chamber run 15 – 20 dBA).

Totally integrated systems and designs include requirement such as isolated floors, lighting and power connections, ventilations, temperature and humidity control instruments, sleeves, control supports, working floors and single & double acoustic doors.