Petroleo Brasileiro S.a. - Petrobras

Universidade Federal Do Rio Grande Do Sul-ufrgs

Universidade Federal De Santa Catarina (ufsc)

Sergio Damasceno Soares

Thomas Gabriel Rosauro Clarke

Fabiana Dias Fonseca Martins

Armando Albertazzi Gonçalves Junior

Estiven Sanchez Barrera

Ana Lucia Fampa Seabra D'almeida

Alberto Bisognin

Analucia Vieira Fantin

Ricardo Callegari Jacques

Lúcio De Abreu Corrêa

Mauro Eduardo Benedet

Giovanno Ferrari Zuglian

Henrique Tormen Haan De Oliveira

Daniel Pedro Willemann

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.

Shearography and interferometry sensor with multidirectional dynamic phase shifting and method of inspection and measurement of vibration modes

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.

Method and system for inspection of joints in composite pipes and of composite repairs in metallic pipelines

Growing community of inventors

Petrópolis, Brazil

Sergio Damasceno Soares