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  • Kvalitetskontroll i produksjonsprosessen.
  • Testing innen forskning og utvikling

About

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The quantity airflow resistance is one of the most important parameters for the description of porous materials with strong links to its acoustic properties. A low value for the airflow resistance indicates little resistance for air streaming through the material and a high value indicates that the material is closer to air-tight.

Nor1517A measures the specific airflow resistance – and related quantities – by the applying the alternating airflow method according to ISO 9053-2:2020 Acoustics – Determinations of airflow resistance – Part 2: Alternating airflow method.

The Nor1517A system is based on the dynamic principle. An AC motor driven piston produces a oscillating movement causing an alternating air-flow of frequency 2Hz into a cylindrical tank and through the test material. The pressure modulation inside the cylinder are measured by a condenser microphone connected to a sound analyser using the 2Hz 1/3 octave band on the sound level meter Nor140. The specific airflow resistivity is indicated on the meter directectly in Pa s/m. The measurement results may also be stored in the instrument memory for further use/documentation.

Egenskaper

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  • Rask og nøyaktig måling og avlesning av måleresultater.
  • Godtar testmateriale av ulik form og størrelse.
  • Enkel oppsett og bruk.
  • Stort dynamisk måleområde.
  • Måler ved 2 Hz.
  • Standard: ISO 9053-2:2020.
  • Måleområde: 10 Pa s m-1 til 30 000 Pa s m-1, opptil 100 000 Pa s m-1 ved korrigering for ikke-lineariteter.
  • Luftstrømhastighet: 1,6 mm/s og 5 mm/s (r.m.s.) valgt av slaglengden 4,46 mm (Cal) eller 14 mm (Mål).
  • Maks. diameter på prøvestykker: 100 mm.

Standards

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  • ISO 9053-2:2020

Tilbehør

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Tilbehør inkludert:

  • Calibration disc
  • ample holder Nor1517A/01
  • Sample holder 1517A/03
  • Sound level meter Nor140 with microphone, sealing device and 1/3 octave filters, option for high measurement range.
  • Mains cable
  • Hex key 6 mm
  • Instruction manual

Annet tilbehør:

Norsonic may deliver mounting devices for test materials.

Measurements box 64 x 44  x 77 cm.

Weight =  19 kg.

Ask the factory for special needs.

 

Spesifikasjoner

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Measure the specific airflow resistance in Pa s m-1 according to ISO 9053-2 (2020): Acoustics – Determination of airflow resistance – Part 2: Alternating airflow method. Related quantities as airflow resistance and airflow resistivity may also be measured.

Measurement range: 10 Pa s m-1 to 30 000 Pa s m-1, up to 100 000 Pa s m-1 when correcting for non-linearities.

Airflow speed: 1,6 mm/s and 5 mm/s (r.m.s.) selected by the stroke 4,46 mm (Cal) or 14 mm (Meas)

Diameter of test area: 100 mm

Overall dimension (W×D×H): 590 mm × 290 mm × 640 mm

Power supply: 230 V/50 Hz (or 110 V/60 Hz – option US)

Weight: 19 kg

Accessories included

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  • Calibration disc.
  • Sample holder Nor1517A/01.
  • Measurement tube; sample holder 200 mm.
  • Sound level meter Nor140 with microphone, sealing device and 1/3 octave filters, option for high measurement range..
  • Mains cable.
  • Hex key 6 mm.
  • Instruction manual.
  • Excel sheet (can be downloaded from www.norsonic.com/downloads.

Optional accessories

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  • Norsonic may deliver mounting devices for test materials.
  • Sample holder Nor1517A/02.

Ask us for special needs.

Nedlastinger

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Diverse

Nor1517 calculation

  • Calculation of Airflow Resistance for Nor1517A system -

    Resistance-Nor1517A-02-protected.xlsx (14.3KB)
    Released
    Download
Technical note

Nor1517A airflow resistance measurement system

  • Measuring with the Nor1517A -

    TN-1517A-Measuring-with-the-Nor1517A_0424.pdf (410.36KB)
    Released
    Download

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Norsonic AS
Gunnersbråtan 2
3409 Tranby

Org.nr.: 929 743 040

+47 32 85 89 00
info@norsonic.com

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