NOISE AND VIBRATION MONITORING

01dB Noise Sources

01dB offers a complete range of measuring instruments, software and accessories for building noise measurements.

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According to the regulations, both a unidirectional noise source (sound is sent in one main direction) and an omnidirectional source (sound is propagated in all directions) can be used. 01dB then offers a comprehensive range consisting of 3 noise sources suitable for each requirement:
  • Stand-alone unidirectional source GDB-S
  • Stand-alone omnidirectional source LS01
  • Omnidirectional source LS02

Unidirectional Noise Source GDB-S

GDB-S is a compact unidirectional noise source including the following main elements:
  • a power amplifier
  • a pink noise generator
  • a speaker
Hosted in a robust chassis, GDB-S is powered up by batteries that provide the user with 10 hours of continuous operating time. The user can use the wireless remote control provided in order to start and stop the source. The GDB-S source is fully integrated into the 01dB product range dedicated to building acoustics. Using the SWT001 box, the SOLO Black Edition sound level meter can indeed automatically start and stop the source during the measurement of reverberation time or acoustic insulation against airborne noise. Using software dBSOLO-B installed on a PC tablet, the operator can control both sound level meter SOLO and source GDB-S. 
 
Omnidirectional Sources LS01/LS02
 
In addition to the GDB-S source, 01dB offers 2 omnidirectional sources, LS01 and LS02, compliant with standards ISO 140 and ISO 3382. Both sources have the same design. They consist of a 12-loudspeaker dodecahedron and contain each:
  • a power amplifier
  • a noise generator
 
Robust, compact and easy to implement, both sources LS01/LS02 can be driven using a remote control. In addition to starting and stopping the sources, the user can control:
  • the volume level by +/-2 dB steps or with a known gain (0 dB, -8 dB, -30 dB…).
  • the type of noise: pink, white, swept sine according to different frequency ranges
The LS01 source is delivered with a battery pack that provides more than 1 hour of operating time.
 
Stand-alone unidirectional source GDB-S
  • Compact and robust
  • 1m Pressure Level (107 dB(Z))
  • Pink noise generator
  • Operating life: 10 hours
  • Remote driving with remote control (provided) or with sound level meter SOLO Black Edition associated with its SWT001 module
 
Stand-alone omnidirectional source LS01
  • Light and robust
  • Powerful (Lw = 115 dB(Z))
  • Noise generator: pink, white, swept sine...
  • Operating life: 1 hour
  • Remote driving with remote control (provided)
 
Omnidirectional source LS02
  • Light and robust
  • Powerful (Lw = 115 dB(Z))
  • Noise generator: pink, white, swept sine...
  • Remote driving with remote control (provided)
GDB-S Specifications
Reference Standards  
ISO140 / ISO 717
ISO 10052 / ISO3382
DIN 52210
EC Compliance  
EN 60065 (06/2004) + A1 (01/2007)
Immunity: EN 55024 (09-1998) + A1 (10-2001) + A2 (01-2003)+S1 (03-2008)
Emission : EN 55022 (01-2009)
Dimensions   L x H x P: 310 x 430 x 200 mm
Weight   15 kg (with batteries)
Remote Control Number of Keys 1
  Frequency: 433 MHz EMC compliant European standard
  Operating Range: 100 m in free field
  Masse: 26 g
Power Supply   Internal charger 220V/12V with charge limiter and colour LED for charge information.
Batteries Type: 2 batteries 6V
lead acid gel with no maintenance
  Operating Life: 10 continuous hours
  Charge Duration: 12 hours
Noise Generator   Pink Noise
Sound Pressure Level at 1m   105.5 dB(A) / 107 dB(Z)
LS01/LS02 Specifications
Reference Standards  
ISO140 / ISO 717
ISO 10052 / ISO3382
DIN 52210
EC Compliance  
EN 60065 (06/2004) + A1 (01/2007)
Immunity: EN 55024 (09-1998) + A1 (10-2001) + A2 (01-2003)+S1 (03-2008)
Emission : EN 55022 (01-2009)
Dimensions   Ø 33 cm
Weight  
11.5 kg for LS01
9.5 kg for LS02
Remote Control Number of Keys: 16
  Frequency: 868 MHz, EMC compliant with European standards
  Operating Range:  20 m in free field
  Dimensions: L x h x w: 150 x 20 x 90
Battery Pack (for LS01 only)  
4 x 12/7.2Ah elements
Resettable internal fuse
Battery life: 60 minutes
Dimensions LxWxH: 360x140x115 mm
Weight: 10.8 kg
Line Input   0.7 VRMS
Noise Generator  
Pink noise, White noise, Swept sine
Fast white, fast pink
LS01 Output Level  
Lw : 122dB, ref 1pW in (Max. output level) (switch position “I”)
Lw : 115dB ref 1pW in (LINEAR) (switch position “II”)
LS02 Output Level  
Lw : 121dB, ref 1pW in (Max. output level) (switch position “I”)
Lw : 115dB ref 1pW in (LINEAR) (switch position “II”)
Frequency Response   50-20,000 Hz ± 3 dB switch on “LINEAR” position
  Pink Noise: 50-20,000 Hz
  White Noise:   40-20,000 Hz
  Swept Sine: 100-8,000 Hz
  Fast White:  50-20,000 Hz
  Fast Pink: 40-20,000 Hz

 

  • Building acoustics
  • On-site measurement of airborne noise insulation levels
  • Laboratory measurement of airborne noise insulation levels