Patent ID: 8438928

Claim:
An apparatus for non-destructive testing utilizing ultrasonic waves in a phased array comprising: a first wedge and a second wedge; said first wedge including a housing defining a ramp surface and a bottom opening, said ramp surface defining a top opening and sloping at an angle from greater than 0 degrees to less than 90 degrees along the longitudinal axis, and sloping at an angle from 0 degrees to less than 90 degrees along a secondary axis toward said second wedge; a liquid column extending downwardly from said top opening to said bottom opening; attachment means adapted to accept an electronic probe; said second wedge including a housing defining a ramp surface and a bottom opening, said ramp surface defining a top opening and sloping at an angle from greater than 0 degrees to less than 90 degrees along the longitudinal axis, and sloping at an angle from 0 degrees to less than 90 degrees along a secondary axis toward said first wedge; a liquid column extending downwardly from said top opening to said bottom opening, said ramp surface sloping at an angle; and attachment means adapted to accept an electronic probe.