Ultrasonic flaw detecting system
First Claim
1. A method of locating a flaw position in a weld line of a material to be tested with an ultrasonic scanning unit comprising the steps of:
- placing said scanning unit having a probe over said material to be tested at a random angle relative to said weld line, said probe producing probe position data including data of displacements of said probe along an X-axis and a Y-axis and a rotational angle of Θ
axis;
aligning a beam index P of said probe with a first reference point A on said weld line of said material to be tested, and reading positional coordinates of said first reference point A in an X and Y coordinate system;
aligning said beam index P of said probe with a second reference point B lying on said weld line a given distance from said first reference point A, and reading the positional coordinates of said second reference point B in said X and Y coordinate system;
transmitting an ultrasonic signal from an ultrasonic flaw detector to said probe and producing flaw detection data on the basis of a reflection echo signal fed back from said probe;
receiving said flaw detection data from said ultrasonic flaw detector and said probe position data from said scanning unit and recording both of said data on an external recording medium; and
processing said data recorded on said external recording medium to locate the flaw position in said weld line of said material to be tested.
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Accused Products
Abstract
An ultrasonic flaw detecting system comprises a manual scanning unit equipped with a probe and capable of producing a probe position data signal, an ultrasonic flaw detector for transmitting an ultrasonic signal to the probe and producing flaw detection data on the basis of a reflection echo signal as received, and a data collecting/recording unit for receiving the flaw detection data from the ultrasonic flaw detector and the probe position data from the manual scanning unit to record both data on an external recording medium, wherein the scanning unit, the ultrasonic flaw detector and the data collecting/recording unit constitute a portable flaw detection data collecting apparatus. The data stored on the external recording medium can be loaded in a data processing apparatus installed at a predetermined location independent of the portable flaw detection data collecting apparatus to be thereby automatically processed for obtaining various information of flaw possibly present within an object to be tested. Due to the provision of the manually manipulatable scanning unit, the scanning operation for searching flaws can be effected in a flexible manner when compared with the conventional autonatic scanning unit, whereby flaw detection can be accomplished with an improved accuracy and high reliability.
49 Citations
8 Claims
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1. A method of locating a flaw position in a weld line of a material to be tested with an ultrasonic scanning unit comprising the steps of:
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placing said scanning unit having a probe over said material to be tested at a random angle relative to said weld line, said probe producing probe position data including data of displacements of said probe along an X-axis and a Y-axis and a rotational angle of Θ
axis;aligning a beam index P of said probe with a first reference point A on said weld line of said material to be tested, and reading positional coordinates of said first reference point A in an X and Y coordinate system; aligning said beam index P of said probe with a second reference point B lying on said weld line a given distance from said first reference point A, and reading the positional coordinates of said second reference point B in said X and Y coordinate system; transmitting an ultrasonic signal from an ultrasonic flaw detector to said probe and producing flaw detection data on the basis of a reflection echo signal fed back from said probe; receiving said flaw detection data from said ultrasonic flaw detector and said probe position data from said scanning unit and recording both of said data on an external recording medium; and processing said data recorded on said external recording medium to locate the flaw position in said weld line of said material to be tested. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification