In duct measurements

•  Transfer matrix and TL (muffler, filter, flexible pipedurit, turbocompressor, etc.)

• Surface impedance under grazing flow (aeronautic treatment)

• Nozzle/jet noise

These services use a range of benches located in our walls and in the University of Maine Acoustics Laboratory:

• Trained engine bench

• Positive pressure system (750 kg/h at 500 mBar)

• Modular bench (varied sources, tube diameters, cones, endings)

• Benches with rectangular and round cross-sections (15x100 mm² and 20x50 mm²) University of Maine Acoustics Laboratory, up to Mach 0.45

Specific needs can be met (high pressure and temperature measurements, etc.)