Laser Sensor Distance Control for Sample Collection Accuracy
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Solution Overview
Problem
Existing sampling techniques face challenges in maintaining the optimal distance between the sample collection instrument and the surface during the sampling process, leading to potential misinterpretation of results, especially when the surface is not accurately positioned, and require manual adjustments which can be skill-dependent and inefficient.
Innovation Solution
A system utilizing a laser sensor to monitor and adjust the distance between the sample collection instrument and the surface automatically, ensuring the optimal spacing is maintained throughout the sampling process, using a movable support arm and computer-controlled XYZ stage to adjust the position of the surface relative to the collection instrument.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual adjustments are used to control the distance between the sample collection instrument and the surface, then the operator can make real-time corrections, but the process becomes skill-dependent and inefficient
Solution Approach 1:
The system uses a laser sensor to automatically measure and control the distance between the sample collection instrument and the surface, eliminating the need for manual operator intervention. The sensor continuously monitors the distance and provides feedback to the control system, which automatically adjusts the instrument position to maintain optimal spacing throughout the sampling process.
Solution Approach 2:
The patent replaces manual mechanical adjustment with an automated optical measurement system. A laser sensor optically measures the distance between the instrument and surface, substituting the mechanical skill-based adjustment process with an automated optical-electrical control system that continuously maintains optimal positioning.
2Manufacturing precision
If the collection instrument is maintained at a predetermined distance from the surface, then optimal collection results are achieved, but the system becomes complex requiring continuous monitoring and adjustment
Solution Approach 1:
The system incorporates a laser sensor that continuously measures the actual distance between the sample collection instrument and the surface, providing real-time feedback to the control system. Based on this feedback, the system automatically adjusts the instrument position to maintain the predetermined optimal distance, ensuring consistent sampling accuracy without requiring complex manual intervention.
3Measurement precision
If the surface is not accurately positioned in the intended location, then poor collection results are obtained, but manual positioning requires operator skill and time
Solution Approach 1:
The laser sensor is pre-configured to measure the distance between the sample collection instrument and the surface before sampling begins. The system establishes the optimal distance relationship in advance and maintains it throughout the sampling process, eliminating the need for continuous manual positioning adjustments and reducing operator skill requirements.
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 solution ensures precise and consistent sample collection by maintaining the optimal instrument-to-surface distance, reducing the likelihood of misinterpretation of results and eliminating the need for manual adjustments, thereby improving the accuracy and reliability of the sampling process.
Implementation Method 1
distance-measuring means including a laser sensor arranged in a fixed positional relationship relative to the collection instrument for generating a signal which corresponds to the actual distance between the laser sensor and the surface
Implementation Method 2
generating a signal which corresponds to the actual distance between the laser sensor and the surface
Data Source
Figure 1
Figure 2~3
Figure 4a~4b
AI summary
A system (20) and method utilizes distance- measuring equipment (40) including a laser sensor (42) for controlling the collection instrument-to-surface distance during a sample collection process for use, for example, with mass spectrometric detection. The laser sensor is arranged in a fixed positional relationship with the collection instrument (23), and a signal is generated by way of the laser sensor which corresponds to the actual distance between the laser sensor and the surface (22). The actual distance between the laser sensor and the surface is compared to a target distance between the laser sensor and the surface when the collection instrument is arranged at a desired distance from the surface for sample collecting purposes, and adjustments are made, if necessary, so that the actual distance approaches the target distance.