m+p VibControl for acoustic testing uses high-level noise to test the effect of acoustically induced vibration in a reverberation chamber. It is a fully automatic digital control system, providing fast, accurate and repeatable control of high-level noise to a reference octave band spectrum and the overall sound pressure level (OASPL). The control foresees a high level of product safety.
The user interface has the same look and feel as the interface of the m+p VibControl shaker controllers for set-up, test run and post-test analysis. Supporting the same powerful Ethernet-based m+p VibRunner acquisition hardware, m+p VibControl for acoustic control can be configured as a vibration control system by simply adding a software module.
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Guido Bossaert, m+p international, inc., Verona/New Jersey, and Stephen A. Rizzi, NASA Langley Research Center, Hampton/Virigina, describe improvements to the acoustic control system of the Thermal Acoustic Fatigue Apparatus, a progressive wave tube test facility at the NASA Langley Research Center in Hampton.