2014 Physical Test and Monitoring Finalist
Characterizing Sound Profiles for a New Airbus Aircraft Using NI PXI
Author: Johan de Goede, Rob Zwemmer, National Aerospace Laboratory (NLR)
Challenge: Acquiring data at high sample rates from more than 200 microphones and pressure sensors that are distributed in a large wind tunnel while keeping the signals synchronized within 1 μs.
Solution: Using the PXI and PXI Express synchronization bus and the external synchronization possibilities to demonstrate close synchronization of the signals, even if their cabling lengths differ by 100 m.
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