Optical Surface Measurement With Dynamic Gain And Irradiation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing measurement apparatuses face reduced measurement accuracy due to fixed amplification factors and light irradiation levels, which are inadequate for varying surface properties of measurement targets, leading to saturation or reduced resolution.
Innovation Solution
A measurement apparatus that adjusts the amplification factor and light irradiation levels dynamically to maintain output values close to a reference, using a control device to change these parameters stepwise or continuously, ensuring accurate measurement across different surface properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the amplification factor and amount of light irradiation are set low to cope with a measurement target with high smoothness, then the output saturation is avoided, but the resolution reduces
Solution Approach 1:
The patent implements dynamic adjustment of the amplification factor and light irradiation amount based on the measured surface properties. The control unit changes these parameters during the measurement process to maintain optimal output values, transitioning from static fixed settings to dynamic adaptive settings that resolve the contradiction between avoiding saturation and maintaining resolution
Solution Approach 2:
The patent changes the parameters of amplification factor and light irradiation amount according to the surface smoothness measurements. By adjusting these parameters based on the measured values and predetermined ranges, the system optimizes the balance between resolution and saturation avoidance for different measurement targets
2Measurement precision
If the amplification factor and amount of light irradiation are set high to cope with a measurement target with low smoothness, then the resolution is improved, but the output saturates when measuring a measurement target with high smoothness
Solution Approach 1:
The system dynamically adjusts amplification and irradiation settings based on real-time measurement of surface properties, preventing output saturation in high smoothness targets while maintaining high resolution for low smoothness targets through adaptive parameter changes
Solution Approach 2:
The control unit uses feedback from the light receiver output values to adjust the amplification factor and light irradiation amount. By comparing the output values against predetermined ranges and adjusting parameters accordingly, the system prevents saturation while maintaining optimal resolution across different surface types
3Device complexity
If constant amplification factor and light irradiation are used, then the device complexity is reduced, but the measurement accuracy varies depending on the surface properties of the measurement target
Solution Approach 1:
The patent introduces dynamic adjustment capability to the measurement apparatus, allowing the amplification factor and light irradiation amount to change based on measured surface properties. This dynamic feature improves measurement accuracy across diverse targets while adding controlled complexity through automated parameter adjustment
Solution Approach 2:
The measurement apparatus automatically adjusts its own parameters based on the measured surface properties without external intervention. The control unit autonomously changes amplification and irradiation settings to optimize measurement accuracy, making the system self-adaptive to different measurement targets
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 measurement accuracy by using adjustable amplification and irradiation to maintain output values near a reference, improving resolution and reducing saturation issues.
Implementation Method 1
a light receiver that includes a light receiving element to receive light reflected by the surface
Implementation Method 2
configured to amplify and output an output value corresponding to an amount of the light received
Implementation Method 3
an irradiator configured to radiate light to a surface of a measurement target
Data Source
AI summary
A measurement apparatus includes: an irradiator configured to radiate light to a surface of a measurement target; a light receiver that includes a light receiving element to receive light reflected by the surface, and is configured to amplify and output an output value corresponding to an amount of the light received; a changer configured to change the output value of the light receiver by changing at least one of an amplification factor of the output value of the light receiver or an amount of light irradiation of the irradiator; and a measurer configured to measure a surface property of the measurement target using output value data in which the output value is close to a predetermined reference value in a changeable range of the output value.