Blade Imaging System with Rotational Correction
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Solution Overview
Problem
Existing imaging technologies face challenges in accurately capturing and aligning images of cyclically disposed blades around a rotary shaft, particularly in jet engines, due to rotational irregularities and varying positions, which complicates defect detection and measurement.
Innovation Solution
A photography system that includes an observation scope inserted into a hole of a case housing the rotary shaft, a fixing section to stabilize the scope at different positions, an imaging section for continuous image generation, and an image processing section that corrects and aligns images based on rotation cycles and pixel variations to display aligned images of the blades.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If images are captured continuously during rotation, then productivity is improved, but manufacturing precision deteriorates due to rotational irregularities causing misalignment
Solution Approach 1:
The system performs preliminary actions by capturing multiple images continuously before alignment processing, then uses image processing to detect blade positions and correct alignment based on rotation cycle information, achieving both high productivity and precision
Solution Approach 2:
The system uses feedback by detecting actual blade positions from captured images, comparing them with expected positions based on rotation cycle, and automatically correcting alignment errors through image processing and repositioning
2Measurement precision
If the observation scope is fixed at multiple positions, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The observation scope is designed to be universal by making it movable between multiple fixed positions, allowing the same scope to capture images from different angular positions around the rotary shaft, thereby improving measurement precision without requiring multiple dedicated scopes
Solution Approach 2:
The system employs dynamic positioning where the observation scope can be moved to different fixed positions around the rotary shaft, enabling multi-angle imaging capability while maintaining a relatively simple overall structure through controlled movement rather than fixed multi-position architecture
Data Source
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Figure 3A~3B
AI summary
A photography system includes: an observation scope inserted into a hole of a case in which a plurality of sets of subject groups, each of which includes a plurality of subjects that are cyclically disposed around a rotary shaft and rotate around the rotary shaft, are housed along with the rotary shaft and a plurality of holes are formed to penetrate through the case and configured to sequentially acquire light from the plurality of subjects included in one set of subject groups among the plurality of sets of subject groups; an imaging section configured to continuously image light acquired by the observation scope to generate an image in a state in which the plurality of sets of subject groups rotate; and a display section configured to display the image generated by the imaging section.