Danfoss, France, Acoustic holography measurements for scroll compressors
Sound power reduction of compressors. Acoustic holography measurements are done to locate vibro-acoustic sources.
Thanks to the OR38 24 channels, the measurements are made in a near field in a semi-anechoic chamber. The acoustic holography software allows to make a back propagation of the measured fields and to obtain a fine distribution of the vibratory speeds at the surface of the compressor.