FORCE Technology has a large range of test facilities and can conduct test according to the majority of product standards and generic standards.
A reverberation chamber or room is a room designed to create a diffuse or random incidence sound field (i.e. one with a uniform distribution of acoustic energy and random direction of sound incidence over a short time period). Reverberation chambers tend to be large rooms (the resulting sound field becomes more diffused with increased path length) and have very hard exposed surfaces. The change of impedance (compared to the air) these surfaces present to incident sound is so large that virtually all of the acoustic energy that hits a surface is reflected back into the room. Arranging the room surfaces (including the ceiling) to be non-parallel helps inhibit the formation of standing waves - additional acoustic diffusers are often used to create more reflecting surfaces and further encourage even distribution of any particular sound field.
Reverberation chambers are used in acoustics as well as in electrodynamics, such as for measurement microphone calibration, measurement of the sound power of a source, and measurement of the absorption coefficient of a material. All these techniques assume the sound field in the chamber to be diffuse, and will normally use a broadband sound source (e.g. white noise or pink noise) so that the resulting sound field contains acoustic energy across the whole audible range.
Reverberation effects are often used in studios to add depth to sounds. Reverberation changes the perceived spectral structure of a sound but does not alter the pitch.
Electromagnetic compatibility (EMC) test equipment is used to evaluate the electrical conducted or wireless performance and integrity of any product, from automobiles to furniture.
Fully reflective chamber equipped with an approx. 100 m2 movable wall (stirrer), the chamber is normally called a Reverberation Chamber (RC).
Facts about the Reverberation Chamber no. 1Field strength: > 350 V/m
Frequency range: 80 MHz – 40 GHz
Dimensions (LxWxH): 12.8x10.8x6.9 m
Port Dimension (WxH): 3x3 m
Test volume: 150 m3
Load capacity (floor): max. 10,000 kg/m2
Platform at the entrance to RCDirect level access to the facility, load capacity max. 10,000 kg (distributed)
Facts about the Reverberation Chamber no. 2Field strength: approx. 1,000 V/m
Frequency range: 800 MHz – 40 GHz
Dimensions (LxWxH): 4.1x4.0x2.6 m
Door Dimension (WxH): 1.0x1.9 m
Test volume: 9 m3
Load capacity (floor): max. 2,000 kg/m2