Semi-flexible electromagnetic ultrasonic probe for defect detection of pipeline components

Abstract

The invention discloses a semi-flexible electromagnetic ultrasonic probe for defect detection of pipeline components, which belongs to the technical field of ultrasonic nondestructive detection. The semi-flexible electromagnetic ultrasonic probe for defect detection of pipeline components comprises a plurality of probe monomers which are sequentially connected through a rotating shaft mechanism, each probe monomer comprises an exciting coil circuit board, a probe shell and a permanent magnet, the probe shell is hollow, the exciting coil circuit board is fixed on a detection surface, attached to a workpiece to be detected, of the probe shell, and the permanent magnet is arranged in the probe shell; and the excitation coil circuit boards of the adjacent probe monomers are connected in sequence and then connected to an ultrasonic detection system. The equivalent lift-off distance of the probe can be reduced, the amplitude of an electromagnetic ultrasonic signal excited in the pipeline is increased, and the detection precision is improved; good universality is achieved on defect detection of pipeline components, and the load of operators is reduced; the probe monomers are mutually independent, so that the whole probe cannot be scrapped due to the damage of the single probe monomers.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic nondestructive testing, and in particular relates to a semi-flexible electromagnetic ultrasonic probe for defect detection of pipeline components. Background technique [0002] Pipeline structures have an extremely wide range of applications, from long-distance transmission of resources such as oil and natural gas, to the arrangement of communications, electricity, and HVAC that can be seen everywhere in urban buildings. These pipelines support economic development and daily life. Once some of the structures fail, it will not only affect the normal operation of the economy, but also bring great inconvenience to people’s lives. Therefore, non-destructive testing and evaluation of pipeline structures is of great significance. Extremely significant economic significance and practical needs. On the one hand, the non-destructive testing of the pipeline structure includes the elimination of defectiv...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the object of the present invention is to provide a semi-flexible electromagnetic ultrasonic probe for defect detection of pipeline components, which can solve the shortcomings of traditional probes that are not ideal for detecting non-planar components, and has good versatility

Images