Danfoss, France, Acoustic holography measurements for scroll compressors

Sound power reduction of compressors. Acoustic holography measurements are done to locate vibro-acoustic sources.

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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.

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