Acoustic, Vibration and Control Group reports

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Browsing Acoustic, Vibration and Control Group reports by Author "Halim, Dunant"

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    Calibration test report for the phone-or 3D optical energy density probe
    (2004) Halim, Dunant; Petersen, Dick; Cazzolato, Benjamin Seth; School of Mechanical Engineering
    This report contains the calibration tests undertaken on the Phone-Or 3D optical Energy Density probe. A number of tests were performed for testing the calibration for the omni-directional pressure and 3-axis pressure gradient measurements. The calibration results were found to be generally consistent with the calibration specifications provided by the manufacturer.
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    The phone-or 3D optical energy density probe: calibration test report of the modified/re-calibrated probe
    (2004) Halim, Dunant; Petersen, Dick; Cazzolato, Benjamin Seth; School of Mechanical Engineering
    This report discusses the results from the second calibration test performed on the Phone-Or 3D optical Energy Density probe. The first calibration test found several performance issues associated with high level of noise in the Phone-Or probe. Since then, the Phone-Or manufacturer has addressed those issues by modifying and re-calibrating the probe. To investigate the current performance of modified/re-calibrated probe, a second calibration test was performed in the Anechoic chamber at the University of Adelaide. The test results show that the Phone-Or probe's performance has improved considerably with its self-noise level, particularly due to 50 Hz harmonics, been reduced significantly.