Accession Number : ADD007622

Title :   Multiple Wedge Element Lens for an Ultrasonic Inspection Transducer.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Hartman,Henry W , Jr

Report Date : 03 Mar 1980

Pagination or Media Count : 10

Abstract : A plurality of flat or curved, wedge-shaped elements form the surface of a lens of an ultrasonic inspection transducer. The multiple wedge-shaped elements permit the ultrasonic energy from the transducer to be focused in a substantially straight line (line focus) parallel to the axis of the lens and deflected from a plane parallel to the wedge-shaped elements and at an oblique angle to the line focus. This achieves a concentration of ultrasonic energy along a line that can be projected into material as shear waves while maintaining equidistance from the transducer's sensing wafer. This results in a concentration of ultrasonic energy that can detect small cracks in a workpiece. (Author)

Descriptors :   *Patent applications, *Transducers, *Ultrasonic tests, *Inspection, *Lenses, Wedges, Shear properties, Cracks, Shape, Focusing, Detectors, Wafers, Energy, Inventions

Subject Categories : Electrical and Electronic Equipment
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE