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Bruksområder
- Kvalitetskontroll i produksjonsprosessen.
- Testing innen forskning og utvikling
Luftstrømsmotstandsmålesystem Nor1517A
Nor1517A-systemet måler luftstrømmotstanden i porøse materialer i henhold til ISO 9053-2:2020.
Om
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 results are calculated in an Excel spreadsheet or alternatively read from the meter directly in Pa s/m The measurement results may also be stored in the instrument memory for further use/documentation.
Egenskaper
- 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.
Standarder
- ISO 9053-2:2020
Tilbehør
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
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
- 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
- Norsonic may deliver mounting devices for test materials.
- Sample holder Nor1517A/02.
Ask us for special needs.
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