Stokes Polarized CMOS Sensor for Turbid Oil Particle Imaging
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Solution Overview
Problem
Existing optical imaging methods struggle to effectively capture and process images of abrasive particles in turbid lubricating oil due to scattering effects, leading to blurred images and reduced detection efficiency and accuracy.
Innovation Solution
The proposed imaging device and method utilize a Stokes polarized CMOS sensor to measure Stokes vector information in real-time, filtering out scattered light and enhancing image quality of abrasive particles by leveraging the polarization characteristic difference between scattered light and reflected light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If optical imaging is used to capture abrasive particles in lubricating oil, then particle appearance characteristics can be captured, but image quality deteriorates due to light scattering from turbid oil
Solution Approach 1:
The patent changes the polarization state parameter of light to differentiate between scattered light and reflected light. By using polarized light illumination and detecting polarization characteristics, the system can distinguish abrasive particles from oil droplets based on their different polarization responses, thereby improving particle imaging quality in turbid oil
Solution Approach 2:
The patent introduces polarization filtering as an intermediary mechanism to separate useful reflected light from harmful scattered light. The polarizer and analyzer act as intermediaries that selectively transmit or block light based on polarization orientation, enabling clear particle imaging despite scattering in turbid oil
2Reliability
If conventional imaging sensors are used, then detection can be performed, but detection accuracy decreases in high-turbidity conditions
Solution Approach 1:
The patent enhances conventional imaging sensors by adding polarization detection capability. The sensor captures not only intensity information but also polarization state information (Stokes parameters), providing additional dimensions of particle characterization that improve detection accuracy and prevent information loss in turbid conditions
Solution Approach 2:
The patent adds the polarization dimension to traditional intensity-based imaging. By measuring Stokes parameters (I, Q, U, V), the system creates a multi-dimensional characterization of particles that enables discrimination between abrasive particles and oil droplets, recovering information that would be lost in conventional single-dimensional intensity imaging
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 improves the image quality of abrasive particles, extends the coverage duration for monitoring, and provides technical support for judging the abrasive stage and health status of particles, even in high-turbidity lubricating oil conditions.
Implementation Method 1
By using a polarization characteristic difference between scattered light of lubricating oil media and reflected light of abrasive particles, Stokes vector information is measured in real time under turbid lubricating oil scenes
Implementation Method 2
the scattered light of the media is filtered out, image quality of abrasive particles is improved
Data Source
AI summary
Provided in the present invention are an imaging device and method for turbid oil abrasive particles based on polarized image enhancement, which belong to the technical field of image processing. The imaging device of the present invention includes a CMOS fixing device, a Stokes polarized CMOS sensor, an optical lens sleeve and an optical magnifying glass, where the Stokes polarized CMOS sensor includes a CMOS sensor and a Stokes analyzer. By using a polarization characteristic difference between scattered light of lubricating oil media and reflected light of abrasive particles, Stokes vector information is measured in real time under turbid lubricating oil scenes, the scattered light of the media is filtered out, image quality of the abrasive particles is improved, coverage duration for monitoring abrasive particle imaging is effectively prolonged.