Multi-angle Colorimeter Posture Error Correction
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Solution Overview
Problem
Multi-angle colorimeters face challenges in maintaining reliability and durability when used in inclined positions, particularly in manufacturing lines, due to posture errors that affect measurement accuracy and require labor-intensive manual adjustments.
Innovation Solution
A multi-angle colorimeter design featuring an illuminating portion, a light detecting portion with main and auxiliary light receiving windows, and a calculating portion that corrects electrical signals based on auxiliary signal information to account for posture errors, allowing accurate colorimetry even when the reference plane is inclined.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the colorimeter is used in an inclined position to measure side surfaces of car bodies, then the measurement coverage is improved, but the measurement accuracy deteriorates due to posture errors between the sample normal and the reference axis
Solution Approach 1:
The patent introduces a secondary geometry plane orthogonal to the main geometry plane, adding a dimensional perspective for light reception. By arranging auxiliary light receiving windows on this secondary plane, the system can detect posture errors and compensate for inclined measurements, thus maintaining accuracy while improving adaptability to different measurement positions.
Solution Approach 2:
The patent replaces mechanical adjustment mechanisms with an optical detection and calculation system. Instead of using elastic bodies or contact pins to mechanically maintain or adjust posture, the system uses auxiliary light receiving windows and photoelectric conversion elements to detect posture deviations, then uses calculation portions to computationally correct the measurements, substituting mechanical solutions with optical and computational ones.
2Measurement precision
If elastic bodies or contact pins are used to reduce posture error, then the measurement accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent replaces mechanical posture correction mechanisms (elastic bodies, contact pins) with an optical-detection-and-calculation system. The auxiliary light receiving windows detect posture deviations optically, and the calculation portion computationally corrects measurements, eliminating the need for complex mechanical adjustment mechanisms while maintaining posture error reduction.
Solution Approach 2:
The patent introduces auxiliary light receiving windows and photoelectric conversion elements as intermediaries between the light path and the measurement system. These intermediaries detect posture deviations without requiring mechanical contact or adjustment mechanisms, serving as a non-mechanical mediator that enables posture error reduction through optical detection and computational correction.
3Measurement precision
If manual adjustment mechanisms are used to correct posture errors, then the measurement accuracy is improved, but the labor and time requirements increase
Solution Approach 1:
The patent implements a self-correcting measurement system where the auxiliary light receiving windows automatically detect posture deviations and the calculation portion automatically computes corrections without requiring manual intervention. The system serves itself by autonomously identifying and correcting posture errors, eliminating the need for operators to manually adjust the device while maintaining measurement accuracy.
Solution Approach 2:
The patent creates a feedback loop where auxiliary light receiving windows continuously monitor the actual light reception geometry, and the calculation portion uses this feedback information to correct measurements in real-time. This automated feedback mechanism eliminates manual adjustment needs while maintaining accuracy, as the system continuously self-regulates based on detected posture deviations.
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 design enables reliable and durable colorimetry without the need for manual adjustments, maintaining measurement accuracy and reducing labor and time requirements, even when the colorimeter is inclined relative to the measurement plane.
Implementation Method 1
a main photoelectric conversion element for receiving a main component light received by the main light receiving window in a reflected light from a measurement plane disposed on the measurement point and converting the main component light into an electrical main signal; and a plurality of auxiliary photoelectric conversion elements for receiving a plurality of auxiliary component lights received by the plurality of auxiliary light receiving windows in the reflected light and converting the plurality of auxiliary component lights into a plurality of electrical auxiliary signals
Data Source
AI summary
In a multi-angle colorimeter, a light detecting portion 40 includes a main light receiving window disposed in a predetermined position on a main geometry plane, and first and second auxiliary light receiving windows disposed on a secondary geometry plane, and a main photoelectric conversion element for converting a main component light received by the main light receiving window in a light reflected from a measurement point into an electrical main signal and first and second auxiliary photoelectric conversion elements for converting first and second auxiliary component lights received by the first and second auxiliary light receiving windows in the reflected light respectively into first and second electrical auxiliary signals. A calculating portion corrects the electrical main signal based on the first and second electrical auxiliary signals to obtain color information about the measurement point.