Aero-engine blade in-service in-situ video eddy current infrared detection system

By designing an integrated in-situ video eddy current infrared detection system for aircraft engine blades, the eddy current detection coil assembly, endoscope video head and infrared camera are used to achieve refined detection of eddy currents in the complex structure of aircraft engine blades, solving the problems of low detection efficiency and weak data fusion in the prior art, and improving detection accuracy and efficiency.

CN119643692APending Publication Date: 2025-03-18EDDYSUN (XIAMEN) ELECTRONICS CO LTD
0 Cites 1 Cited by

Patent Information

Application Number
CN202411743485.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-30
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

The prior art is difficult to achieve rapid in-situ detection of refined eddy current in-service blades in complex structures of aircraft engines, and conventional methods have low detection efficiency and weak data fusion.

Method used

A system for in-situ video eddy current infrared detection system for aircraft engine blades is designed, using an integrated probe and a multi-mode detector. The probe is equipped with an eddy current detection coil assembly, a binocular endoscope video head and a micro infrared camera. The detection of multiple defects is achieved through time sharing, multi-mode operation and attitude adjustment.

Benefits of technology

It realizes rapid in-situ detection of various defects on the thermal barrier coating of aircraft engine blades, improves detection sensitivity and accuracy of infrared thermal imaging signals, eliminates the impact of coils on infrared signals, and integrates sensors and miniaturizes them, and significantly improves detection efficiency.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention relates to the field of nondestructive testing, and discloses an aero-engine blade in-service in-situ video eddy current infrared detection system and a detection method, a multi-mode detector and an integrated detection probe are designed, a binocular endoscopic video head is adopted to obtain the complex internal condition of an engine, the probe is assisted to stretch in, and the posture of the probe is adjusted; the probe is attached to a to-be-detected surface, the eddy current detection coil assembly formed by combining a transparent coil and a ferrite magnetic ring is adopted to improve the magnetism gathering and heating performance, time-sharing and multi-mode work is achieved, and different detection modes and heating functions are switched by applying a combined excitation signal. The transparent coil reduces the shielding influence on the infrared thermal imaging signal obtained by the miniature infrared camera, and improves the precision of the infrared thermal imaging signal. According to the invention, high integration of video, eddy current and infrared sensors is realized, the probe is miniaturized, and in-service in-situ detection of various defects at the same fixed point position on a thermal barrier coating of an aero-engine blade is realized.
Need to check novelty before this filing date? Find Prior Art