Inner Surface Shape Measurement Device Wiring Routing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing inner surface shape measurement devices face challenges in achieving high measurement accuracy due to wiring interference with the imaging view field, particularly when using optical fibers and mirrors to project light on the inner surface of tubes, leading to broken bright parts in captured images.
Innovation Solution
The device employs a configuration where the light source, optical system, and photography unit are aligned along the same axis, with the wiring extending from the light source to the photography unit and optionally bent to avoid the imaging view field, and includes a cylindrical member to house the wiring, ensuring optical transparency and minimizing interference, allowing for high-accuracy shape measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wiring is disposed between the imaging device and the measured surface, then power can be supplied to the light source, but the bright linear part is broken in the captured image
Solution Approach 1:
The harmful factor (wiring) is extracted from the imaging field by routing it through a separate channel in the insertion portion, isolating it from the optical path. This allows the wiring to perform its power supply function without interfering with the imaging quality.
Solution Approach 2:
The wiring is routed in a different spatial dimension (through the insertion portion structure) rather than through the imaging field, separating the power supply path from the optical measurement path in three-dimensional space.
2Measurement precision
If multiple optical fibers are used to avoid wiring interference, then the bright part continuity is improved, but the device complexity increases
Solution Approach 1:
The wiring function is extracted from the optical fiber bundle and implemented through the insertion portion structure, eliminating the need for multiple optical fibers and their complex arrangement while maintaining bright part continuity.
Solution Approach 2:
The insertion portion is designed to serve multiple functions: it provides structural support, guides the measurement light, and routes the wiring away from the imaging field, replacing the need for separate optical fibers for each function.
3Adaptability or versatility
If the device size is reduced for endoscope attachment, then the adaptability is improved, but the wiring interference with imaging field becomes more significant
Solution Approach 1:
The wiring is nested within the insertion portion structure, which itself is nested within the detection head assembly. This compact nested arrangement allows the wiring to be accommodated without increasing the overall device size while maintaining imaging quality.
Solution Approach 2:
In the compact detection head design, the wiring is routed along the longitudinal axis of the insertion portion, utilizing the length dimension rather than occupying radial space, thereby avoiding interference with the transverse imaging field.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enables continuous bright parts on the inner surface to be captured without interference from the wiring, resulting in high measurement accuracy and a compact, attachable detection head for endoscope applications.
Implementation Method 1
an optical system which converts light emitted by the light source into a disc-shaped light beam to cause the light beam to be emitted toward the inner surface
Implementation Method 2
a photography unit which captures an image of a state in which the light beam is projected on the inner surface
Data Source
AI summary
An inner surface shape measurement device for measuring a shape of an inner surface of a test target, and includes a light source, an optical system which converts light emitted by the light source into a disc-shaped light beam to cause the light beam to be emitted toward an inner surface of the test target, a photography unit which captures an image of a state in which the light beam is projected on the inner surface of the test target, and a wiring which supplies power for driving the light source. The optical system, the light source and the photography unit are disposed in this order along a same axis line, and the wiring extends from the light source toward the photography unit.