Void/particulate detector

Patent · Tue Jan 01 04:00:00 EST 1985

OSTI ID:865602

Claytor, Thomas N ^[1]; Karplus, Henry B ^[2]

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1. Woodridge, IL
2. Hinsdale, IL

Voids and particulates are detected in a flowing stream of fluid contained in a pipe by a detector which includes three transducers spaced about the pipe. A first transducer at a first location on the pipe transmits an ultrasonic signal into the stream. A second transducer detects the through-transmission of the signal at a second location and a third transducer at a third location upstream from the first location detects the back-scattering of the signal from any voids or particulates. To differentiate between voids and particulates a fourth transducer is positioned at a fourth location which is also upstream from the first location. The back-scattered signals are normalized with the through-transmission signal to minimize temperature fluctuations.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4542644
• OSTI ID: 865602
• Country of Publication: United States
• Language: English

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