Measuring and testing – Instrument proving or calibrating – Apparatus for measuring by use of vibration or apparatus for...
Reexamination Certificate
2011-06-28
2011-06-28
Williams, Hezron (Department: 2856)
Measuring and testing
Instrument proving or calibrating
Apparatus for measuring by use of vibration or apparatus for...
C073S001820
Reexamination Certificate
active
07966860
ABSTRACT:
A method for configuring an array of transducers in an ultrasonic test apparatus for detecting flaws in welds connecting the edges of metal bodies such as plates or pipelines. The method includes the steps of: providing geometrical data of the bevelled edges of the bodies before being welded; identifying different facets of the geometry of the edges; providing geometrical data of a reference plate including a reflector; selecting the angles; and the positions of the transducers in accordance with the geometry of the edges; mounting the transducers to a scanning mechanism in accordance with the selections made; connecting the transducers to at least one control unit for transmitting ultrasound and receiving echo signals by means of the transducers and subsequently calibrating by means of the reference plate the positions of the transducers relative to the scanning mechanism and calibrating gain and gate settings by means of the reference plate.
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Jacobson & Holman PLLC
Miller Rose M
Röntgen Technische Dienst B.V.
Williams Hezron
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