tender for impedance tube test set up for vibration and acoustics laboratory impedance tube test set up impedance tubes are essential tools in acoustics and materials science for measuring accurately sound absorption coefficients impedance , impedance tube test set up for vibration andacoustics laboratory , large diameterimpedance tube with leg supporthaving inner diameter 100 ±1mm , frequency range 100 hz to 1600hz, material - aluminium , sample cutter (for large impedance tube) diameter 100mm , sample holder for large impedance tube for holdingtest samplesminimum length 150 mm , sample holder (for large impedance tube) for calibration sample .the same will be used for obtaining anechoic termination during sound transmission lossmeasurement . minimum length. 150 mm. , sample holder (for large impedance tube) for obtaining open termination during sound transmission loss measurement minimum length 200 mm , reference acoustic samples(for large impedance tube) which will be used for calibration purpose along with the calibration report. outer diameter 100 mm. sample material: melamine foam. , demo acoustic samplesof (for large impedance tube)polyurethane foam ,pet felt, solimide foam, granular rubber for sound absorption coefficient and sound transmission loss measurement.(one of each type. outer diameter 100 mm , acoustic coupler sound leakage rings made of plastic material for large tube.outer diameter 100 mm , small diameterimpedance tube with leg support , inner diameter29 ±1 mm, frequency range 900 hz to 6200 hz, material -aluminium. , sample cutter (for small impedance tube) 29 ±1mm. , sample holder for small impedance tube for holding test samples minimum length 150 mm. , sample holder (for small impedance tube) for calibration sample the samewill be used for obtaining anechoic termination during sound transmission lossmeasurement . minimum length 150 mm , sample holder (for small impedance tube) for obtaining open termination during sound transmission loss measurement minimum length 200 mm , reference acoustic samples (for smallimpedance tube) which will be used for calibration purposes along with the calibration report. outer diameter 29 ±1 mm sample material: melamine foam . , demo acoustic samples of (for smallimpedance tube)polyurethane foam ,pet felt, solimide foam, granular rubber for sound absorption coefficient and sound transmission loss measurement.(one of each type. outer diameter 29 ±1 mm , acoustic coupler sound leakage rings made of plastic material for smalltube.outer diameter 29 ±1 mm , data acquisition system (daq),signal generator capable of generating stationery signal with flat spectral density within the frequency range of 50 hz to 5000 hz. , power amplifier of 50w/75w along with the accessories for the connections. frequency response of 20 hz to 20000 hz. , laptop for data acquisition system 14th generation i9, 16 gb ram, 4 gb graphics card, 1 tb ssd, usb3.0, lanport 1g , 1/4 pressure field microphone , loudspeaker: 4-inch, 6 ohm,15w, 100 mm , software for sound absorption coefficient, sound transmission loss measurement ,acoustic impedance measurement. , sound level meter (with low frequency sound measurement function)