Pyramidal structured absorber for radiation force balance targets for acoustic power greater than 2W but less than 20W
The combination of the acoustic and physical properties of the Aptflex F28P acoustic absorber makes it the cost-effective solution for a Radiation Force Balance target for devices measuring acoustic power in the range 2-20W.
Physical Specification
- based on a polyurethane rubber material
- single-ply nominally homogeneous layer
- pyramidal structured surface with maximum thickness of tile: 10mm
- tile dimensions: 200mm by 220mm
- material can be precision cut in various geometries to meet exact end-user requirements
- density of 1.01g/cm3, is close to that of water
Acoustical Specification
- high transmission loss, approximated by 20dB/cm/MHz
- high echo-reduction, greater than 20dB at 1MHz, to greater than 40dB above 6MHz
