title: An interferometric technique for B/A measurement.
abstract: An isentropic phase method is described for measuring in vitro the acoustic nonlinearity parameter B/A of several aqueous buffers, protein solutions, lipid oils, and emulsions. The technique relies upon the use of an acoustic interferometer to measure the small changes in sound speed that accompany a rapid hydrostatic pressure change of between one and two atmospheres. Average accuracies of 0.85% are attainable with this method.
authors.affiliation: Yale Center for Acoustics, Yale University, New Haven, Connecticut 06520, USA.
authors.forename: E C
authors.initials: EC
authors.lastname: Everbach
authors.forename: R E
authors.initials: RE
authors.lastname: Apfel
mesh_terms: D000162:Acoustics; D004655:Emulsions; D066298:In Vitro Techniques; D008055:Lipids; D011506:Proteins; D012996:Solutions; D013997:Time Factors; D014867:Water
chemical_list: D004655:Emulsions; D008055:Lipids; D011506:Proteins; D012996:Solutions; D014867:Water