ULTRASONIC WAVE PROPAGATION MODELS FOR NONDESTRUCTIVE TESTING: LIQUID- LIQUID INTERFACES

Technical Report · Tue Oct 01 04:00:00 EDT 1963

OSTI ID:4054039

Fitch, C E

Basic analytical and experimental studies to determine the accuracy of simple plane wave ultrasonic propagation models in liquids were made. Liquid- liquid interfaces were chosen for initial studies on the effects of attenuation and boundary waves. Plane waves, infinite in both time and space, incident on a liquid-liquid interface were studied analytically for the cases where neither liquid was attenuating, where only the refracting liquid was attenuating and where both liquids were attenuating. Comparison of the reflection and transmission coefficients and the attendant phase shifts for the three conditions showed only minor differences when a kerosene-glycerine interface was considered. The presence of attenuation, however, changed the form of the waves that propagate in both liquids. Without attenuation inhomogeneous boundary waves were generated nt incident angles equal to and exceeding the critical angles. With attenuation the refracted waves were always inhomogeneous. Attenuation also resulted in a complex wave leading to a modified form of Snell's law, which did not exhibit a critical angle. (P.C.H.)

• Research Organization: General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
• DOE Contract Number: AT(45-1)-1350
• NSA Number: NSA-18-018013
• OSTI ID: 4054039
• Report Number(s): HW-78701
• Country of Publication: United States
• Language: English

Related Subjects

ABSORPTION
ALCOHOLS
ENGINEERING
EQUATIONS
ERRORS
GLYCERIN
HYDROCARBONS
KEROSENE
LIQUIDS
MATERIALS TESTING
MATHEMATICS
MEASURED VALUES
PETROLEUM
PHASE SHIFT
REFLECTION
REFRACTION
SPECTRAL SHIFT
SURFACES
ULTRASONICS