Detection Sensor Multiple Light Receivers Speed Accuracy
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Solution Overview
Problem
Existing detection sensors with a single light-emitting element and a single light-receiving element are prone to detection errors when measuring the conveying speed of materials, leading to inaccuracies in conveying speed detection.
Innovation Solution
A detection sensor configuration featuring a single light-emitting element and multiple light-receiving elements, which receive both surface-scattered and internally-scattered light, is used to improve the accuracy of conveying speed measurement by reducing detection errors through averaging processing of the signals from multiple light-receiving elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single light-emitting element and a single light-receiving element are used, then the device complexity is reduced, but the measurement precision deteriorates due to detection errors in conveying speed
Solution Approach 1:
The light-receiving function is segmented into multiple light-receiving elements (first, second, and third light-receiving elements) positioned at different locations. Each element detects light scattered at different positions, and their signals are combined through averaging to reduce detection errors and improve measurement precision while maintaining relatively simple device structure
Solution Approach 2:
Multiple light-receiving elements are merged into a single detection system where their output signals are combined through averaging processing. This merging approach reduces random detection errors and improves conveying speed measurement accuracy without significantly increasing device complexity
2Measurement precision
If multiple light-receiving elements are used to reduce detection errors, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The detection function is segmented across multiple light-receiving elements positioned at different locations to capture light scattered from different positions, improving measurement precision through spatial distribution while keeping each individual element simple
Solution Approach 2:
The multiple light-receiving elements serve themselves by naturally capturing scattered light from different positions simultaneously, and the averaging of their signals automatically reduces detection errors without requiring complex additional components or processing mechanisms
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 configuration enhances the precision of conveying speed detection, reducing fluctuations and image defects by averaging the signals from multiple light-receiving elements, thereby improving the reliability of the measurement process.
Implementation Method 1
multiple light-receiving elements that receive interference light including the light that is scattered at a surface of the conveyed material and the light that is scattered inside the conveyed material
Data Source
AI summary
A detection sensor includes: a single light-emitting element that radiates light onto a conveyed material; and multiple light-receiving elements that receive interference light including the light that is scattered at a surface of the conveyed material and the light that is scattered inside the conveyed material.