Rontgen Technische Dienst B.v.

Technische Universiteit Delft

Andries Gisolf

Niels Pörtzgen

Xavier Georges Jose Deleye

Adrianus Maria Cornelius Van Den Biggelaar

Xavier Georges José Deleye

A method for inspecting an object by ultrasound for detecting a wall thickness or defects of the object, wherein at least one ultrasonic pulse is transmitted into the object on a first position on an object's surface, the ultrasonic pulse is received on a second position on an object's surface possibly by propagating directly towards the second position along the surface or possibly as a result of reflection and/or diffractions of the pulse so that more than one pulse being received at different time and wherein a data signal is generated representing the received pulses and the associated moments in time wherein these pulses are received wherein the step is repeated for other positions and wherein the data signals are processed for generating processed signals to obtain a To FD image, wherein the processing for obtaining the processed data signals comprises at least three processing steps.

Method for inspecting an object by means of ultrasound

A method for examining the interior material of an object, such as a pipeline or a human body, from a surface of an object using ultrasound having a frequency of at least 100 KHz, wherein the ultrasound is supplied to the interior material of the object. The reflections and/or diffractions of the ultrasound from the interior material of the object are received using ultrasonic receivers which are acoustically coupled to the surface of the object at positions which are distributed in two dimensions of the surface of the object, at different points in time or not, wherein, with each of the feelers, a receiving signal is generated, wherein the receiving signals are processed in combination in order to determine, according to the principle of inverse wave field extrapolation, where in the interior material of the object reflections and/or diffractions occur.

Method and apparatus for examining the interior material of an object, such as a pipeline or a human body from a surface of the object using ultrasound

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Delft, Netherlands

Andries Gisolf