Patent ID: 7577533

Claim:
An ultrasonic inspection apparatus for non-destructive inspection of a work piece, the work piece having an entrance surface and a back wall, the ultrasonic inspection apparatus comprising: a transmit/receive probe, the transmit/receiver probe comprising a couplant for coupling to the entrance surface of the work piece, wherein the couplant allows for varying the angle under which the coupling to the entrance surface is performed in at least two solid angles, a transmitter connected to the transmit/receiver probe, the transmitter generating transmit pulses which it then delivers to the probe, wherein the transmit pulses, on the one side, are reflected at the entrance surface of the work piece back to the probe with an entrance echo pulse resulting there from and, on the other side, penetrate the work piece where they are reflected at least once at the back wall of the work piece with a back wall echo pulse resulting there from, a receiver connected to the probe, the receiver being suited for receiving the entrance echo pulse and the at least one back wall echo pulse and converting the received echo pulses to electric echo signals, and a bar display, the bar display being suited for showing at least one signal value in real time, with the signal value being derived from one of the following: the entrance echo, one back wall echo, a plurality of back wall echoes.