Sensor Calibration via Dual-Film Element Release
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Solution Overview
Problem
Existing sensors face challenges in achieving stable detection accuracy due to variations in element concentration and density, which affect their calibration and detection capabilities.
Innovation Solution
A sensor design incorporating a first film with a specific density and concentration of an element, paired with a second film having a higher density or concentration of the same element, allows for controlled release of the element for calibration, utilizing a heater to efficiently release the element and calibrate the sensor's output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sensor uses a single film with fixed element concentration and density, then the sensor structure is simple, but the detection accuracy becomes unstable
Solution Approach 1:
The sensor divides the film structure into two separate films: a first film with first element concentration and density, and a second film with second element concentration and density. This segmentation allows each film to have optimized properties for stable detection, resolving the contradiction between measurement precision and device complexity by creating a multi-component structure that achieves stability without excessive complexity.
Solution Approach 2:
The patent applies local quality by giving each film distinct elemental concentrations and densities tailored to specific functions. The first film is designed with specific properties for baseline detection, while the second film has different properties optimized for calibration or enhanced detection, allowing each local region to contribute optimally to overall detection accuracy.
2Measurement precision
If the sensor requires external calibration materials and equipment, then calibration accuracy can be improved, but the ease of operation deteriorates
Solution Approach 1:
The sensor performs self-calibration by utilizing the second film as an internal calibration reference. The heater releases the target element from the second film, which then serves as a built-in calibration standard. This self-service approach eliminates the need for external calibration materials and equipment, significantly improving ease of operation while maintaining calibration accuracy through the controlled release and detection of the target element.
Solution Approach 2:
The second film serves multiple functions: it acts as both a structural component of the sensor and an internal calibration reference. By making the calibration function integrated into the sensor structure itself, the system achieves multi-functionality that improves ease of operation without sacrificing calibration accuracy.
3Productivity
If the sensor uses a heater to release the target element for calibration, then calibration efficiency is improved, but energy consumption increases
Solution Approach 1:
The heater operates periodically rather than continuously, activating only during calibration cycles to release the target element from the second film. This periodic action maintains high calibration efficiency when needed while minimizing energy consumption during normal operation, resolving the contradiction between productivity and energy use by concentrating energy input into brief, targeted calibration events.
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 approach enables easy calibration and stable detection accuracy by ensuring consistent release and detection of the target element, enhancing the sensor's performance and reliability.
Implementation Method 1
causing the first element to be released from the second film of the sensor
Implementation Method 2
the first film has a first concentration of a first element, the second film has at least one of a second density, or a second concentration of the first element, the second concentration being greater than the first concentration
Data Source
AI summary
According to one embodiment, a sensor includes a sensor part including a first film, and a structure body including a second film. The first film has a first density, and a first concentration of a first element. The second film has at least one of a second density, or a second concentration of the first element. The second concentration is greater than the first concentration. The second density is greater than the first density.