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Advancements in aircraft engine Inspection: a MEMS-based 3D measuring borescope
Citation Link: https://doi.org/10.15480/882.15205
Publikationstyp
Journal Article
Date Issued
2025-05-08
Sprache
English
Author(s)
Shanshan, Gu-Stoppel
Leder, Günther
Reinert, Wolfgang
Burmeister, Nils
Ratzmann, Lars
Giese, Thorsten
Schütt, Patrick
Piechotta, Gundula
TORE-DOI
Journal
Volume
12
Issue
5
Article Number
419
Citation
Aerospace 12 (5): 419 (2025)
Publisher DOI
Scopus ID
Publisher
MDPI
Peer Reviewed
true
Aircraft engines are regularly inspected with borescopes to detect faults at an early stage and maintain airworthiness. A critical part of this inspection process is accurately measuring any detected damage to determine whether it exceeds allowable limits. Current state-of-the-art borescope measurement techniques—primarily stereo camera systems and pattern projection—face significant challenges when engines lack sufficient surface features or when illumination is inadequate for reliable stereo matching. MEMS-based 3D scanners address these issues by focusing laser light onto a small spot, reducing dependency on surface texture and improving illumination. However, miniaturized MEMS-based scanner borescopes that can pass through standard engine inspection ports are not yet available. This work examines the essential steps to downsize MEMS 3D scanners for direct integration into borescope inspections, thereby enhancing the accuracy and reliability of aircraft engine fault detection.
Subjects
aircraft engine inspection
aero engine
non-destructive testing (NDT)
borescope
MEMS mirror
MEMS scanner
LiDAR
3D measurement
DDC Class
629.13: Aviation Engineering
621.3: Electrical Engineering, Electronic Engineering
Publication version
publishedVersion
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Name
aerospace-12-00419-v2.pdf
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5.91 MB
Format
Adobe PDF