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Laboratory Services

Laboratory Services. Measurements. Bruel & Kjaer Impedance Tube Measurements. Measurement of Acoustic Performances using Impedance Tube : Sound Absorption Coefficient Sound Reflection Coefficient Impedance Ratio Admittance Ratio Sound Transmission Loss. Measurements.

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Laboratory Services

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  1. LaboratoryServices

  2. Measurements Bruel&KjaerImpedanceTubeMeasurements • Measurement of AcousticPerformancesusingImpedanceTube: • SoundAbsorptionCoefficient • SoundReflectionCoefficient • ImpedanceRatio • AdmittanceRatio • SoundTransmissionLoss

  3. Measurements Bruel&KjaerImpedanceTubeMeasurements MeasurementLimitations Frequencyrange: 50Hz- 6,4kHz Homogeneousmaterial Flat-surfacematerial Onlyplane waves can propagate inthe impedance tube a b AssemblyforSoundAbsorptionMeasurements, ISO 10534-1 AssemblyforTransmissionLossMeasurements, (ISO 10534-2)

  4. Measurements VibrationMeasurements

  5. Measurements AlphaCabinMeasurements • Theworkingprincible of AlphaCabin α: SoundAbsorptionCoefficient V: RoomVolume As: SurfaceArea of theMaterial Sabine Formula » =

  6. Measurements AlphaCabinMeasurements MeasurementLimitations Frequencyrange : 400Hz-10kHz Homogeneous/Nonhomogeneous Material Flat-surface/Nonflat-surfaceMaterial SoundWavesimpactthematerial on everyangles Malzemenin Akustik empedansı ve Yüzey empedansı ölçülemez • Design of AlphaCabinwithTwoRooms

  7. Analysis CometTrim: PerformanceAnalysis Acousticperformance is governedbymacroscobicmaterialpropertiesandgeometricproperties ModifiedBiot’stheoryestablishes a relationshipbetweenmaterial, geometricpropertiesandacousticperformance • Evaluation of AcousticPerformance

  8. Analysis CometTrim: PerformanceAnalysis Family of LayersModeled in Trim

  9. Analysis CometTrim: OptimizationandSensitivityAnalysis Evoulatethesensitivity of acousticalperformancewithrespecttomacroscobicproperties Valuesabovetheaxis: Performancewillincreasewhenthedesignparameter is increased Valuesbelowtheaxis: Performancewilldecreasewhenthedesignparameter is increased • DesignSensitivity: An Example

  10. Analysis CometTrim: OptimizationandSensitivityAnalysis Optimize macroscobicpropertiesfordesiredacousticalperformance

  11. Analysis CometTrim: InverseCharacterization Estimatethemacroscobicproperitesbased on measuredacoustical (transmissionlossand/orabsorption) data

  12. Overview of OurLaboratory

  13. Overview of OurLaboratory

  14. ContactInformation Ufuk UZUNDAĞ R&D Executive FORMplast YALITIM BANTLARI SAN. VE TİC.LTD.ŞTİ.GEPOSB İNÖNÜ MAH.BALÇIK YOLU ÜZERİ GEPOSB İÇİ ATATÜRK BLVR NO:7 GEBZE - KOCAELİ / TURKEY  Phone :   +90 262 751 45 13 - 14 - 15   Ext: 148 FAX :       +90 262 751 45 11 MOBILE: +90 532 703 50 36 E-MAIL :  ufuk.u@formplastyalitim.comWEB : www.formplastyalitim.com LaboratoryExecutive:

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