Method of making self-calibrated displacement measurements
Abstract
A method for monitoring the displacement of an object having an acoustically reflective surface at least partially submerged in an acoustically conductive medium. The reflective surface is designed to have a stepped interface responsive to an incident acoustic pulse to provide separate discrete reflected pulses to a receiving transducer. The difference in the time of flight of the reflected acoustic signals corresponds to the known step height and the time of travel of the signals to the receiving transducer provides a measure of the displacement of the object. Accordingly, the reference step length enables simultaneous calibration of each displacement measurement.
- Inventors:
- Issue Date:
- Research Org.:
- Hanford Engineering Development Lab., Richland, WA (United States)
- Sponsoring Org.:
- US Atomic Energy Commission (AEC)
- OSTI Identifier:
- 862768
- Patent Number(s):
- 4008455
- Application Number:
- 05/552582
- Assignee:
- Westinghouse Electric Corporation (Pittsburgh, PA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- DOE Contract Number:
- AT(45-1-)2170
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 1975 Feb 24
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; self-calibrated; displacement; measurements; monitoring; reflective; surface; partially; submerged; conductive; medium; designed; stepped; interface; responsive; incident; acoustic; pulse; provide; separate; discrete; reflected; pulses; receiving; transducer; difference; time; flight; signals; corresponds; provides; measure; measurement; reflected pulses; acoustic signals; reflective surface; conductive medium; acoustic signal; provide separate; receiving transducer; partially submerged; reflected pulse; acoustically conductive; /376/73/367/
Citation Formats
Pedersen, Herbert N. Method of making self-calibrated displacement measurements. United States: N. p., 1977.
Web.
Pedersen, Herbert N. Method of making self-calibrated displacement measurements. United States.
Pedersen, Herbert N. Sat .
"Method of making self-calibrated displacement measurements". United States. https://www.osti.gov/servlets/purl/862768.
@article{osti_862768,
title = {Method of making self-calibrated displacement measurements},
author = {Pedersen, Herbert N.},
abstractNote = {A method for monitoring the displacement of an object having an acoustically reflective surface at least partially submerged in an acoustically conductive medium. The reflective surface is designed to have a stepped interface responsive to an incident acoustic pulse to provide separate discrete reflected pulses to a receiving transducer. The difference in the time of flight of the reflected acoustic signals corresponds to the known step height and the time of travel of the signals to the receiving transducer provides a measure of the displacement of the object. Accordingly, the reference step length enables simultaneous calibration of each displacement measurement.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1977},
month = {Sat Jan 01 00:00:00 EST 1977}
}
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