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ACOUSTIC MEASUREMENTS FOR HVAC/R EQUIPMENT AND CONSUMER GOODS

EUROPE’S MOST MODERN TECHNICAL ACOUSTICS LABORATORYAcoustic measurements

Acoustic measurements for refrigeration systems | Acoustic measurements for heating, ventilation and air-conditioning systems
Acoustic emissions are caused by refrigeration and heating, ventilation and air-conditioning (HVAC/R) systems and units, but also by household appliances such as coffee machines, pressure washers, hand mixers and other consumer goods. To protect people and the environment against excessive noise, manufacturers and their equipment and devices need to fulfil numerous legal requirements and limits. Our acoustic measurement experts will be happy to help you to document that your products are in compliance with the relevant acoustic limits. Contact us for a non-binding offer.

Our laboratory applies technical acoustic measurement techniques and methods. Acoustic measurement data can be used to develop noise-reducing measures.

LIST OF ACOUSTIC MEASUREMENT SERVICES FOR HVAC/R EQUIPMENT AND CONSUMER GOODS:

  • Determination of sound power level (e.g. for HVAC/R equipment in accordance with the EN ISO 3744 series of standards)
  • Measurement of the sound pressure level of acoustic emissions (e.g. of equipment and machinery)
  • Measurement of impulse levels
  • Analysis of tonal components
  • Evaluation of low-frequency noise
  • Measurement of ultrasonic measurements up to 100kHz
  • Frequency analysis by means of FFT
  • Acoustic emission behaviour of equipment over time
  • Acoustic measurements according to customer requirements
  • Acoustic emissions of refrigerated vehicles
  • Full body vibration exposure on pedelecs and working machines
  • Determination of noise levels at machine workplaces
  • Acoustic behaviour of machines in various configurations
  • Human vibration exposure
  • Machinery vibration
  • Performance measurement on jet fans

BASIS OF ACOUSTIC MEASUREMENTS:

  • Machinery Directive
  • Outdoor Directive
  • Eco-Design Directive
  • Noise, vibration and occupational health and safety regulations
  • DIN EN ISO 374x series of standards
  • DIN EN ISO 5349-1 and DIN EN 20643
  • DIN EN ISO 1120x series of standards
  • DIN EN 13487
  • DIN EN ISO 13350
  • DIN EN 16583
  • DIN EN 60704
  • and many more

OUR LABORATORY EQUIPMENT AT A GLANCE:

Measurement chamber:

  • Class 1 semi-anechoic chamber for acoustic measurements
  • Free area approx. 10 m x 10 m
  • Background noise under 5dB(A)
  • K2A = 0 dB
  • Lower limiting frequency below 63 Hz
  • Constant conditions based on HVAC
  • Exhaust extraction

Measurement instruments and equipment:

  • Brüel & Kjær pulse multi-channel measurement system
  • Premium ½" microphones for standard applications
  • Special low-noise ½" microphones for very low noise
  • Ultrasonic microphones up to 100 kHz
  • Premium triaxial accelerometer
  • Real-time processing of measurement data in the Pulse Labshop
  • Fully digital live setup for data recording of other measurement data in the measurement system
  • Recording and BK Connect post-processing
  • Portable handheld measurement device including sound intensity probe
  • Thrust test stand for jet fans

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