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Record W4410842463 · doi:10.1117/12.3054020

Influence of propeller downwash on drone-based active infrared thermographic inspection

2025· article· en· W4410842463 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicAdvanced Measurement and Detection Methods
Canadian institutionsNational Research Council Canada
Fundersnot available
KeywordsDroneDownwashPropellerInfraredEngineeringComputer scienceAerospace engineeringAcousticsMarine engineeringOpticsPhysicsAerodynamics

Abstract

fetched live from OpenAlex

Drone-based inspection systems offer a fast and effective approach that can significantly reduce inspection cost and time. Infrared cameras mounted on drones have been used in several surveillance and monitoring applications. However, for high-resolution inspection that requires the drone to be in close proximity to structures, the propeller’s convection effect can impact the structure’s temperature being monitored. This could be particularly important during an active infrared thermography inspection, when the drone has to hover for a prolonged duration to monitor the temperature evolution of the parts being inspected. This paper presents the results of experiments performed to assess the effect of propeller downwash on drone-based active infrared thermographic inspection. The results are presented for a mockup panel with impact damage and simulated delamination defects. It was found that the drone propellers had a significant effect on the temperature evolution pattern by reducing the peak temperature reached during the heating phase of the inspection, as well as accelerating the cooling rate. Nonetheless, the damage detection capability seems unaffected with only small variations in the contrast of the processed images.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.686
Threshold uncertainty score0.343

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.010
GPT teacher head0.249
Teacher spread0.239 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it