Ultrasonic NDT Inspection System
AssigneeIndepth Inspection Technologies Inc.
InventorsKevin Vincent Ross, Arjun Prakash Thattaliyath Kadumberi, Andrew Lindsay Burns
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Abstract
A method and system for the ultrasonic non-destructive testing of joints in plastic pipesusing A-scans. Ahand-held ultrasonic transducer is used to perform an A-scan and a comparison made on a response from the interface region of the jointused to determine a quality of the joint. Levels of result can providea binary outputto give an indicationof whether or not a defect is present in thejoint. Comparison techniques are described. Tests for coupling efficiency and performance are described making the system useable by an unskilled technician.The system finds application in fault detection on electro-fusion welds in plastic pipe joints.
Claims28
A method of non-destructive testing of a joint in plastic pipes, comprising the steps of:
- locating a hand-held ultrasonic transducer at a first point on a first surface of the joint and performing an A-scan through the joint between the first surface and a back surface of the joint at the first point;
- detecting a trace of the A-scan and identifying an interface response representing one or more reflections of a sound signal from one or more surfaces in a region between the first surface and the back surface;
- analysing the interface response by making a comparison to provide a result;
- and
- outputting the result, the result being indicative of a quality of the joint.
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An ultrasonic non-destructive testing system for a joint in plastic pipes, the system comprising:
- a hand-held ultrasonic transducer, the transducer being located at a first point on a first surface of the joint and operable to perform an A-scan of the joint between the first surface and a back surface of the joint at the first point;
- and an operating unit, the operating unit including:
- a user interface with one or more inputs for a user to control the system and one or more outputs to display a result of the system;
- and
- an analysis module for receiving the A-scan, detecting the presence of an interface response representing a reflection of the sound signal from an interface in a region of the plastic between the first surface and the back surface, performing a comparison and determining the result based on the comparison.
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Dependencies are inferred from the claim text.