Cumulative Reflection Measurement for Interference-Free Spectral Analysis
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Solution Overview
Problem
Existing reflection measurement techniques face challenges in achieving accurate and interference-free measurements, particularly when dealing with objects that have varying refractive indices or complex coatings like paint wedges.
Innovation Solution
The method involves a continuous route reflection measurement along a surface, where a reflection recording unit captures cumulative reflection signals without separate readouts at individual points. This approach generates a cumulative reflection measuring signal that represents the superposition of measurements across the entire route, reducing interference and providing improved measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate individual reflection measurements are recorded at individual measuring positions, then spatial resolution is improved, but measurement time and device complexity increase
Solution Approach 1:
The patent merges multiple individual reflection measurements into a single cumulative measurement by superimposing reflection signals from all measuring positions along the measurement path. This combining approach allows the system to obtain integrated surface information without performing separate measurements at each position, thereby reducing measurement time while maintaining measurement precision through the cumulative nature of the signal superposition.
Solution Approach 2:
The patent implements continuous line reflection measurement where the detector continuously records reflection signals along the entire measurement path in a single continuous action. This continuous measurement approach eliminates the need for discrete sequential measurements at individual positions, significantly reducing measurement time while maintaining the ability to capture comprehensive surface reflection characteristics.
2Productivity
If cumulative reflection measurement signal is generated without separate readouts, then measurement speed is improved, but spatial information is lost
Solution Approach 1:
The patent extracts and utilizes only the integrated reflection information from the cumulative measurement signal, deliberately discarding spatial resolution requirements. By taking out the essential reflection characteristics needed for the measurement objective, the system achieves high measurement speed while accepting the loss of detailed spatial information, as the cumulative signal sufficiently describes the surface properties for the intended application.
3Measurement precision
If precise object arrangement is required for accurate measurement, then measurement accuracy is improved, but ease of operation deteriorates
Solution Approach 1:
The patent changes the measurement parameter from spatially-resolved reflection at specific positions to cumulative reflection along a measurement path. This parameter change allows the system to maintain measurement accuracy by capturing integrated surface information while eliminating the need for precise object arrangement, as the cumulative measurement inherently averages out positional variations and provides robust surface characterization.
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 provides improved measurement results by reducing interference and allowing for the determination of integral spectral sizes that better describe the properties of the object, while also simplifying the measurement process by eliminating the need for precise object arrangement.
Implementation Method 1
Optical methods for contactless measurement of an object by irradiating light onto an object and detecting the light reflected by an optically effective surface of the object
Data Source
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AI summary
The present invention relates to a method and a corresponding device for measuring reflection on the surface of an object to be measured. The method comprises: recording a displacement reflection measurement along a measuring distance on the surface using the reflection detection unit to generate a cumulative reflection measurement signal; and providing the generated cumulative reflection measurement signal as a resultant reflection measurement, wherein recording the displacement reflection measurement includes generating a relative movement between the reflection detection unit and the surface along the measuring distance.