Sound pressure level feedback control

Fluid handling – Flow affected by fluid contact – energy field or coanda effect – Means to regulate or vary operation of device

Reexamination Certificate

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C137S002000, C137S487500

Reexamination Certificate

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07814936

ABSTRACT:
Methods and systems are provided for predicting internal sound pressure within a flow passage, by measuring a vibration velocity response of a wall of the flow passage, for example, using accelerometers. A radiation model may then be used for predicting externally radiated sound pressure to 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.

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