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Test
Equipment
Acoustic
testing requires specialist equipment to ensure the correct results.
All our equipment is designed for the task and calibrated or conformance-checked
as required to ensure compliance with the relevant standards
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Sound
Level Meters
Norsonic
NOR118 Real-time Analyser
A high quality, high specification real-time analyser
suitable for use in environmental noise, building acoustics, speech
intelligibility, sound power, noise mapping and many other areas
Complies
with the following standards & normative documents:
IEC 60651
Class 1
IEC 60804 Class 1
IEC 61672-1 Class
1
IEC 61260 Class 1
ANSI S I.4 1983
TYPE 1
ANSI S I.43 1997
TYPE 1
ANSI S II 1986 TYPE 1D
EN 50081-1
EN 50082-1
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Building
Acoustics System
Norsonic
NOR1516 Wireless Building Acoustic System
This system
allows simultaneous measurements to be made in the source and receiver
room, with two NOR118s linked wirelessly to a base station and laptop.
NORBUILD software on the laptop enables on-the-spot calculation
of test results so our engineers can tell immediately if the test
element has passed or failed
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Sound
Sources
Norsonic
NOR270H
This high-power
omni-directional loudspeaker fulfils the directional characteristic
requirements of the ISO 140-3 standard. Driven with pink noise by
a NOR280 power amplifier, it delivers a continuous sound power level
of 123dB across the 50 - 6300Hz range. Used for measuring airborne
sound insulation
Norsonic
NOR211A Standard Tapping Machine
Designed
to emulate the sound of footfall on structural elements, the tapping
machine is used for measuring impact sound insulation
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Amplification
& Signal Processing
Norsonic
NOR280 Power Amplifier
Designed
specifically for building acoustics (the 4th generation from Norsonic)
this high-power amplifier delivers 500w rms and is the recommended
partner for the NOR270H
Behringer
Ultragraph FBQ3102 Graphic Equaliser
This 31-band
graphic equaliser allows adjustment by 1/3 octave of the noise spectrum
in the source room in order to comply with Approved Document E Annex
B2.4
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Measurement
Microphone
Norsonic
NOR1225 Measurement Microphone
Accurate
to ±1dB over the range 12.5 - 10k Hz, this ½"
free-field microphone is rated as Class 1 under IEC61672
Norsonic
NOR1206 Microphone Preamplifier
A general
purpose low noise 1/2" preamplifier with a broad frequency
response and high dynamic range
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Calibration
Casella
Cel-110/1 Acoustic Calibrator
A Class
1 dual-level (94dB and 114dB) calibrator engineered to be accurate
over a wide range of temperature, humidity and pressure conditions
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