Fiber Instrument Multi-Wavelength Illumination
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Solution Overview
Problem
Current electronic instruments for fiber quality measurement are inconsistent in detecting fine variations in fiber properties and struggle to reliably identify both fiber and non-fiber characteristics, such as trash, in a timely and repeatable manner.
Innovation Solution
A fiber instrument with a surface for receiving the sample, multiple independently controllable illumination sources emitting different peak wavelengths, and a sensor for capturing images, which allows for precise detection of foreign materials and color gradations by varying illumination intensity and pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electronic instruments are used to grade fibers, then measurement speed and consistency are improved, but the ability to detect fine variations in fiber properties deteriorates
Solution Approach 1:
The system changes the parameter of illumination wavelength by providing multiple light sources with different peak wavelengths (e.g., 450nm blue, 530nm green, 630nm red). This allows the instrument to detect fine variations in fiber properties by illuminating the sample at multiple wavelengths and analyzing the reflected light characteristics, thereby improving measurement precision without sacrificing speed.
2Measurement precision
If multiple illumination wavelengths are used, then detection of foreign material and color gradations is improved, but device complexity increases
Solution Approach 1:
The illumination system is segmented into multiple independent light sources, each emitting at a specific peak wavelength. This segmentation allows the system to target different spectral characteristics of the fiber sample and foreign materials separately, improving detection precision while keeping each individual light source relatively simple and manageable.
3Reliability
If independent control of illumination intensity at each wavelength is provided, then fiber and non-fiber characteristic discrimination is improved, but control system complexity increases
Solution Approach 1:
The control system dynamically adjusts the intensity of each wavelength independently based on the measurement requirements. This dynamic control allows the system to optimize the illumination conditions for detecting different types of fibers and foreign materials, improving discrimination reliability while using a programmable controller to manage the complexity.
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
Enhances the detection of foreign materials and color variations in fiber samples, improving the reliability and efficiency of fiber quality measurement, enabling better discrimination between fibers and non-fibers, like trash, and increasing the longevity of the equipment.
Implementation Method 1
an illumination source for selectively illuminating the fiber sample with more than one peak wavelength
Implementation Method 2
a sensor for capturing images of the fiber sample while it is illuminated
Data Source
AI summary
A fiber instrument for measuring properties of a fiber sample, the fiber instrument having a surface for receiving the fiber sample, a hand for pressing the fiber sample against the surface, an illumination source for selectively illuminating the fiber sample with more than one peak wavelength, where each of the peak wavelengths is independently controllable as to an applied intensity of the peak wavelength, a sensor for capturing images of the fiber sample while it is illuminated, and a controller for controlling at least the sensor and the illumination source. By providing multiple peak wavelengths of illumination that are each independently controllable as to illumination intensity, the fiber instrument as described herein is better able to detect both foreign material within the fiber sample, and color gradations of the fiber sample.