Field Splitter for 3D Strain Measurement
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Solution Overview
Problem
Current three-dimensional strain measurement techniques require synchronization of two cameras and fixed geometrical alignment, leading to synchronization difficulties and mechanical instability.
Innovation Solution
A field splitter or beam splitter is used to combine two images from different angles onto a single camera or digital imaging device, eliminating the need for synchronized cameras and reducing mechanical complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two cameras are used to image the object from different angles, then three-dimensional strain measurement capability is improved, but synchronization difficulty and mechanical alignment complexity increase
Solution Approach 1:
The patent combines two separate camera systems into a single camera by merging their optical paths using beam splitters. This allows both cameras to be replaced by one imaging device that captures images from multiple angles simultaneously, eliminating synchronization requirements and reducing mechanical alignment complexity while maintaining 3D strain measurement capability
Solution Approach 2:
The patent introduces beam splitters as intermediary optical elements that divide and redirect light paths from different angles to a single camera sensor. This intermediary component enables the single camera to function effectively as multiple cameras would, resolving the contradiction by mediating between the need for multiple viewing angles and the simplicity of a single imaging device
2Measurement precision
If two cameras are used for three-dimensional strain measurement, then measurement accuracy is improved, but system weight and mechanical instability increase
Solution Approach 1:
The patent merges the functionality of two separate cameras into a single camera system with reduced weight. By combining optical paths through beam splitters, the system achieves the measurement accuracy of dual cameras while using only one camera unit, thereby significantly reducing the overall weight of the imaging system
3Measurement precision
If two cameras are used for three-dimensional strain measurement, then data quality is improved, but electronic duplication and mechanical instability increase
Solution Approach 1:
The patent combines the optical paths of two cameras into a single camera, eliminating the need for duplicate camera electronics, processors, and associated mechanical components. This merging approach maintains data quality from multiple angles while reducing electronic complexity and mechanical instability associated with duplicating entire camera systems
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 approach simplifies the imaging system, reduces weight and mechanical instability, and enhances calibration ease while maintaining accurate three-dimensional strain measurement capabilities.
Implementation Method 1
uses a field splitter or beam splitter to receive two images, from different angles, of the testing sample
Data Source
AI summary
The present disclosure provides an apparatus and method which uses a field splitter or a beam splitter for the purpose combining two different views of a materials testing sample under materials testing into a single image. This allows for three-dimensional strain measurement in the context of material/compound testing. In particular, the time and stress dependent change in gauge length can be tracked and calculated in order to calculate the time and stress dependent strain. The method and apparatus allows imaging on a single image sensor for the three-dimensional strain calculation.