METHOD AND SYSTEM FOR REMOTE SOUND SPEED MEASUREMENT

A system and method of remote sound speed measurement are disclosed. In one embodiment, a system for estimating a sound speed comprises a plurality of transducers configured to i) transmit a first acoustic signal from a first location, ii) receive a first scattered signal at a second location, iii)...

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Bibliographic Details
Main Author BRUMLEY, BLAIR H
Format Patent
LanguageEnglish
French
German
Published 04.04.2012
Subjects
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES
MEASURING
PHYSICS
TESTING
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Summary:A system and method of remote sound speed measurement are disclosed. In one embodiment, a system for estimating a sound speed comprises a plurality of transducers configured to i) transmit a first acoustic signal from a first location, ii) receive a first scattered signal at a second location, iii) receive a second scattered signal at a third location, and iv) receive a third scattered signal at a fourth location; and a microprocessor configured to i) estimate a travel time based on at least one of the first, second, or third scattered signals, ii) generate a cross-correlation signal comprising a product of at least two of the first, second, and third scattered signals, iii) estimate a travel time difference based on at least the cross-correlation signal, and iv) estimate a sound speed based on at least the estimated travel time and the estimated travel time difference.
Bibliography:Application Number: EP20100728946