Dynamic Pressure Calibrator for Wind Tunnel Models

At present carefully arranged arrays of dynamic pressure transducers placed on, within and around wind tunnel models must be calibrated prior to testing. Failure to calibrate properly has the potential to negate some fraction of test results. Current calibration techniques are inconvenient and expensive. Products for dynamic calibration exist, but they are not hand portable and are also not amenable to testing sensors already integrated into models. Two methods with the potential for developing into compact dynamic calibrators for transducers embedded in and around wind tunnel models are proposed. One of the two concepts involves an impulse response method and the other a continuous wave calibration approach. One concept is to be chosen from among the two for `bench-top' development, testing and analysis during the first months of the Phase I effort.