Abstract: The present disclosure is related to techniques for the inspection of joints and repairs in pipelines. In this scenario, the a method is provided for the inspection of joints in composite pipes and of composite repairs in metallic pipelines, comprising the steps of (i) emitting a series of acoustic wave pulses, at different frequencies, from a collar of acoustic transducers positioned at a predetermined distance from a joint or repair to be inspected, (ii) recording, in a time interval subsequent to the emission, echoes of wave displacements to the repair or joint in each of the transducers in the form of an A-Scan, and (iii) generating a flattened C-Scan image, through a CSM, for each frequency of pulse emission from the collar of acoustic transducers. The disclosure further provides a system for inspection of joints in composite pipes and of composite repairs in metallic pipelines associated with the provided method.

Abstract: The present invention is related to techniques for the inspection of joints and repairs in pipelines. In this scenario, the present invention provides a method for the inspection of joints in composite pipes and of composite repairs in metal pipelines, comprising the steps of (i) emitting a series of acoustic wave pulses, at different frequencies, from a collar of acoustic transducers (4) positioned at a predetermined distance from the joint (5) or repair (1) to be inspected, (ii) recording, during a time interval subsequent to the emission, the echoes of the wave displacements up to the repair or joint in each of the transducers of the collar of acoustic transducers (4) in the form of A-Scan, and (iii) generating a planarized C-Scan image, by means of the CSM method, for each pulse emission frequency from the collar of acoustic transducers (4).

Abstract: The present invention proposes the use of the shearography technique in a system for the non-destructive inspection of composite material repairs applied to submerged metallic pipelines. The shearography system of the invention is characterized in that it comprises at least one vision and lighting module (VLM) (1), at least one fixation module (FM) (2), at least one excitation module (TEM) (3), at least one command and power module (CPM) (4), and a computer (5). The proposed system can be fixed to the repaired pipe by means of divers or ROVs, and the inspection control can be carried out entirely from the platform or surface support vessel.

Abstract: The present invention addresses to a multidirectional dynamic phase shifting interferometry (DPSI) shearography and interferometry sensor. The present invention uses a configuration with three fixed prisms, or a single fixed three-facet optical prism constructed so as to achieve the same effect as three prisms and thus simultaneously obtain three images with phase shifting. The present invention also encompasses a method of inspection and measurement of vibration modes using said sensor.

Abstract: This invention relates to inspection techniques for use on composite joints and repairs. In this context, this invention proposes a system for inspecting a repair or joint consisting of a composite material applied to a structure, comprising at least one exciter or element that is excitable (2, 10) to a thermal and/or vibrational stimulus, the at least one exciter or excitable element (2, 10) being integrated into the repair (1) or joint.