APPARATUS AND METHOD FOR NON-INTRUSIVE PRESSURE MEASUREMENT AND EARLY IDENTIFICATION OF SOLIDS FORMATION USING SELECTED GUIDED ULTRASONIC WAVE MODES

A method of measuring a pressure of a fluid adjacent a wall of a pipe or vessel. A transducer is attached to the wall of the pipe or vessel. A signal is transmitted by the transducer at a characteristic frequency via a plurality of guided wave modes. The characteristic frequency is a frequency at wh...

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Bibliographische Detailangaben
Hauptverfasser:	LONG, Ted, A, ZHANG, Ying, DISKO, Mark, M, SONG, Limin, WOLF, Henry, Alan, SEABROOK, Brian, C
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A method of measuring a pressure of a fluid adjacent a wall of a pipe or vessel. A transducer is attached to the wall of the pipe or vessel. A signal is transmitted by the transducer at a characteristic frequency via a plurality of guided wave modes. The characteristic frequency is a frequency at which the guided wave modes are separated in time from each other when received. The signal is received after the plurality of guided wave modes travel in or through the wall a predetermined number of times. The signal has a signal receipt time after the predetermined number of times. The pressure of the fluid is calculated using the signal receipt time.