title: Computer-controlled system for measuring two-dimensional acoustic velocity fields.
abstract: An automatic system is described for measuring two-dimensional acoustic velocity fields in solid samples. The measurement is performed by a computer-controlled, mechanically scanned transducer in a liquid bath, and is based on measuring the phase delay of the acoustic wave by a two-pulse echo method. Applications include measuring stress fields due both to externally applied and residual stresses, and microstructure studies of solid samples.
authors.affiliation: Ginzton Laboratory, Stanford University, Stanford, California 94305.
authors.forename: D B
authors.initials: DB
authors.lastname: Ilić
authors.forename: G S
authors.initials: GS
authors.lastname: Kino
authors.forename: A R
authors.initials: AR
authors.lastname: Selfridge