Subsurface Reference Markers for Precise Fluid Sampling
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Solution Overview
Problem
Existing sampling apparatuses for fluid image analysis face challenges in precise detection of reference markers due to surface laser marking, which deposits particles that distort measurement results.
Innovation Solution
The reference markers are created inside the material, away from the surface, using laser inner engraving, eliminating surface particles and allowing for more precise detection by the visual measuring device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If reference markers are applied on the surface by laser marking, then the markers can be detected by the visual measuring device, but particles are deposited on the surface that distort measurement results
Solution Approach 1:
The reference marker is moved from the surface (2D) to the inner region (3D subsurface position) of the sampling apparatus body. This dimensional transition allows the marker to be formed by laser inner engraving without generating surface particles, as the laser energy is focused below the surface to create the marker in the subsurface region while the surface remains clean and particle-free.
2Measurement precision
If reference markers are made in the inner region remote from the surface, then measurement results are free from particle distortion, but the markers must be formed by complex laser inner engraving process
Solution Approach 1:
The mechanical contact method of applying surface markers is replaced by a non-contact laser inner engraving process. The laser beam focuses energy directly into the inner region of the material to form the reference marker without physical contact, eliminating the need for additional marker application steps and reducing overall manufacturing complexity despite the advanced processing method.
3Loss of information
If laser marking is used to create reference markers, then the markers are visible to the measuring device, but the deposited particles accumulate and negatively affect measurements
Solution Approach 1:
The harmful particle generation step is extracted and eliminated from the marker creation process. By using laser inner engraving to form the reference marker in the subsurface region, the process removes the intermediate step of surface particle deposition that occurs with traditional laser marking, thereby preventing particle accumulation and its negative effects on measurement accuracy.
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 method ensures accurate and particle-free measurement results by forming sub-surface reference markers within the sampling apparatus, enhancing the precision and reliability of fluid image analysis.
Implementation Method 1
the reference marker is made in an inner region of the body that is remote from the surface, within the gauging region, by means of laser inner engraving
Implementation Method 2
the laser beam is focussed into the interior of the body
Data Source
AI summary
Sampling apparatus made of a material such as plastic material and/or glass, a body of the material forming a cavity for receiving a liquid sample, the sampling apparatus comprising a gauging region which can be arranged in a focus region of a visual measuring device for determining the position of the sampling apparatus and/or of the cavity, and in which at least one reference marker is arranged which can be detected by means of the visual measuring device, wherein the reference marker is formed in an inner region of the body that is remote from the surface.