Optical Surface Wettability Detection System
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Solution Overview
Problem
Conventional methods for determining surface wettability, such as contact angle measurement and fluorescence analysis, are limited in accuracy and applicability, especially for large surfaces and production line settings, as they are influenced by the shape, roughness, color, and material of the object, and do not effectively differentiate between hydrophilic and hydrophobic regions.
Innovation Solution
A surface wettability determination system comprising a sprayer, a light emission device, and an optical detector that sprays a liquid on the surface, emits a light beam which is reflected by the liquid, and receives the reflected light to output a determining signal related to the surface wettability, using a database to correlate signal intensity with contact angles and surface wettability, allowing for precise hydrophilic or hydrophobic classification and quantitative wettability assessment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional contact angle measurement method is used, then surface wettability can be determined, but the measurement is influenced by object shape, roughness, color, and material, reducing accuracy
Solution Approach 1:
The patent replaces the conventional mechanical contact angle measurement method with an optical detection system. A light source emits light that reflects off the liquid droplet on the surface, and an optical detector captures the reflected light pattern. This optical system eliminates the influence of object shape, roughness, color, and material, providing accurate wettability measurement across diverse surfaces.
Solution Approach 2:
The patent changes the measurement parameter from contact angle (which is sensitive to surface geometry) to optical reflection characteristics. By analyzing the intensity distribution of reflected light, the system determines wettability through a parameter that is independent of object shape, roughness, color, and material properties.
2Measurement precision
If conventional methods are used, then wettability detection is possible, but they cannot effectively differentiate between hydrophilic and hydrophobic regions on large surfaces
Solution Approach 1:
The patent divides the large surface into multiple detectable regions by systematically moving the optical detection system across the surface. The sprayer applies liquid to specific areas, and the optical detector captures reflected light patterns from each region. This segmentation approach enables effective differentiation of hydrophilic and hydrophobic regions across large surfaces by analyzing local optical characteristics in each segment.
3Measurement precision
If contact angle measurement is used, then wettability can be assessed, but the process is time-consuming and不适合for production line settings
Solution Approach 1:
The patent replaces the slow, manual contact angle measurement process with a rapid optical detection system. The light source and optical detector quickly capture reflected light patterns, and the control unit processes the optical signals to determine wettability. This optical-mechanical system significantly increases detection speed, making it suitable for high-speed production line applications while maintaining 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
The system provides accurate and reliable surface wettability determination across large surfaces, unaffected by object shape, roughness, or material, enabling effective detection of hydrophilic and hydrophobic regions, making it suitable for industrial applications like shoe manufacturing.
Implementation Method 1
The light emission device is provided to emit a light beam toward the detected surface. The light beam is reflected by the liquid on the detected surface to generate a reflected light.
Data Source
AI summary
A surface wettability determination system includes a sprayer, a light emission device and an optical detector. The sprayer is provided to spray a liquid on a detected surface of a detected object. The light emission device is provided to emit a light beam toward the detected surface. The light beam is reflected by the liquid on the detected surface to generate a reflected light. The optical detector is provided to receive the reflected light and output a determining signal, and the determining signal is related to a wettability of the detected surface.