Device and method designed for ultrasonically inspecting cylinders for longitudinal and circumferential defects and to measure wall thickness

   
   

Methods and apparatus for ultrasonically scanning cylinders are provided. The methods and apparatus employ as few as one ultrasonic sensor for full immersion scanning and defect detection. Self-centering fixturing spins the cylinder, reducing vibration, allowing for fast ultrasonic scans. To create the 45 degree angle beam shear waves for the circumferential scans, the ultrasonic sensor is offset from the centerline of the cylinder, creating the correct angle for excitation of the shear wave.

De methodes en de apparaten om cilinders worden ultrasoon af te tasten verstrekt. De methodes en de apparaten wenden slechts één ultrasone sensor voor volledige onderdompelingsaftasten en tekortopsporing aan. Het self-centering fixturing spint de cilinder, die trilling vermindert, die voor snel ultrasoon aftasten toestaat. Om tot de golven van de de straalscheerbeurt van de 45 gradenhoek voor het perifere aftasten te leiden, wordt de ultrasone sensor gecompenseerd van de as die van de cilinder, tot de correcte hoek voor opwinding van de scheerbeurtgolf leidt.

 
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