Level Acoustics & Vibration is located at Echo Laboratorium voor Akoestiek (building number 28) at the campus of Eindhoven University of Technology (TU/e). The staff of the Chair Building Acoustics also makes use of the laboratory.
The laboratory has three connected sound transmission rooms, one of which is used as a reverberation chamber. The rooms are connected through a large vertical opening (10 m2) for wall and facade testing and a large horizontal opening (10 m2) for floor and roof testing.
The acoustic measurements are performed by the consultants/researchers from Level Acoustics & Vibration. This allows us to assist our clients in the further development of the product under test. Simulation tools can be applied to investigate the effect of possible improvements, see predictions.
Among other things, the following acoustical measurements can be performed in our lab:
Measurements in our laboratory
Sound absorption
In the acoustics laboratory, the sound absorption can be measured in a reverberation room (ISO 354) of a 10-12 m² sample or in an impedance tube (Kundt tube) of a small 4 cm round sample of porous material (ISO 10534-2).
Sound insulation/transmission loss
In the laboratory, the sound insulation (or transmission loss) of wall- and facade panels of 10 m² can be tested in our large vertical opening between two transmission rooms. In addition, the laboratory has a 10 m² floor opening to test the impact and airborne sound insulation of floor and roof constructions. Measurements are performed following ISO 10140, complemented with other techniques such as vibration and intensity measurements.
Dynamic stiffness
The dynamic stiffness of under floor materials can be measured according to ISO 9052-1. For the measurement 3 samples per material are needed with dimensions of 200 x 200 mm².
Sound power
The sound generation capabilities of equipment and machinery is characterised by the sound power level of the device. In our laboratory it is possible to determine the sound power level of equipment by the reverberation room method and the sound intensity method according to ISO 3741.
Scale model measurements
An acoustical scale model is a physical model of a room, for instance on a scale of 1:10, in which measurements are performed with specialised (scaled) equipment. Materials that are used in the model must have the same absorption and scattering properties (to scale) as the used material in the field. Our laboratory maintains a permanent scale model measurement setup for the measurement of various room acoustical parameters.
For questions on other measuring possibilities in our lab, please contact us.
Measurements in the field
Level Acoustics & Vibration uses various state of the art measurement tools. To find out more about measurements we can do in the field, visit the activity Measurements on location.
