Inspecting device, inspecting unit, and inspecting method

Abstract

Provided is an inspecting device (10) for inspecting a composite material member (1) which is formed from a composite material and includes a main surface (1a) and an intersecting surface. The inspecting device (10) is provided with: a main body part (14); an ultrasonic probe (15) which is coupled to the main body part (14) and is brought into contact with the main surface (1a); an optical sensorpart (16) which is coupled to the main body part (14) in such a way as to be capable of moving in a first direction (Z); and a processing device. The ultrasonic probe (15) is configured to cause ultrasonic waves to be incident on the main surface (1a) of the composite material member (1), and to receive reflected waves. The optical sensor part (16) is configured to emit sensor light in a second direction (X) perpendicular to the first direction (Z), and to receive reflected light. The processing device is configured to output a measurement result obtained on the basis of the reflected waves and the reflected light. In this way, defects in the composite material member are detected in cases in which it is assumed that a plurality of defects are aligned in the direction in which the ultrasonic waves are incident.

Description

technical field [0001] The present invention relates to an inspection device, an inspection unit and an inspection method, in particular to inspection of parts formed of composite materials. Background technique [0002] As exemplified by carbon fiber reinforced plastics (CFRP) and glass fiber reinforced plastics (GFRP), composite materials (composite materials) composed of resins and fibers are widely used in various industrial fields including aircraft. [0003] Parts formed of composite materials (hereinafter, simply referred to as "composite material parts") often have defects. In particular, when machining (for example, drilling) a composite material part, defects due to damage due to machining often occur. In order to confirm the existence of such defects, inspections are carried out during the manufacturing and processing steps of composite material parts. [0004] One of the most typical inspection methods for composite components is ultrasonic inspection. In ultr...

AI Technical Summary

Problems solved by technology

In this case, ultrasonic inspection can only detect the defect closest to the incident position, and missed detection of defects may occur

In particular, delamination occurs easily in a specific direction (such as the lamination direction of fiber sheets or fiber cloth) when machining a composite material part that is laminated with fiber sheets or cloth, and therefore, defects are likely to occur. omission

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