| 摘要 |
<p>SOUND PRESSURE LEVEL FEEDBACK CONTROL METHODS AND SYSTEMS ARC PROVIDED FOR PREDICTING INTERNAL SOUND PRESSURE WITHIN A FLOW PASSAGE, BY MEASURING A VIBRATION VELOCITY RESPONSE OF 5 AWALL OF THE FLOW PASSAGE, FOR EXAMPLE, USING ACCELEROMETERS. A RADIATION MODEL MAY THEN BE USED FOR PREDICTING EXTERNALLY RADIATED SOUND PRCSSURET.O PROVIDE FEEDBACK TO CONTROL A PROCESS CONTROL SYSTEM. METHODS AND SYSTEMS ARE ALSO PROVIDED FOR PREDICTING EXTERNALLY RADIATED SOUND PRESSURE BASED ON INTERNALLY-MOUNTED PRESSURE TRANSDUCER SENSOR DATA. 10 FIG 1</p> |
