Moisture Sensor With Segmented Conductors For Liquid Spread Detection
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Solution Overview
Problem
Current moisture detection technologies face challenges in accurately and efficiently detecting the presence and spread of moisture, particularly in complex environments, due to limitations in sensor design and material properties, which affect the reliability and precision of moisture detection.
Innovation Solution
The development of a moisture sensor system that integrates a moisture sensor with a reader, utilizing conductors and substrates of varying impedance and structure to detect moisture presence and spread, where the reader applies voltage and measures current to determine impedance changes, allowing for precise location and area determination of moisture on the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional moisture detection technologies are used, then moisture presence can be detected, but the accuracy and reliability are insufficient in complex environments
Solution Approach 1:
The moisture sensor is divided into multiple conductive elements arranged in specific patterns on the substrate. Each conductive element acts as an independent sensing zone, allowing the system to detect moisture presence, location, and spread area through differential measurements across segments. This segmentation enables accurate moisture mapping while maintaining reliability in complex environments.
Solution Approach 2:
Different regions of the substrate are equipped with conductive elements having different impedance characteristics. The conductive elements are strategically positioned to provide varying sensitivity in different areas, allowing the system to accurately detect moisture in specific critical zones while maintaining overall detection reliability across the entire substrate surface.
2Stability of the object's composition
If the substrate and moisture sensor are made rigid, then the sensor provides stable detection, but it cannot be stored in compact form for deployment
Solution Approach 1:
The substrate and moisture sensor are constructed using flexible materials that allow the entire assembly to be rolled or folded into a compact form for storage and transport. When deployed, the flexible substrate maintains its structural integrity and provides stable detection performance. This flexible construction enables the sensor to transition between compact storage and stable operational states without compromising detection accuracy.
3Power
If conductors with low impedance are used, then current flow is improved for detection, but the precision in determining moisture location is reduced
Solution Approach 1:
The conductive elements are designed with varying impedance values based on their specific functional requirements. Conductors in regions requiring high current flow for detection are designed with lower impedance, while conductors in regions requiring precise moisture location determination are designed with higher impedance. This localized optimization of conductor properties allows the system to achieve both adequate current flow and precise moisture location detection simultaneously.
Solution Approach 2:
The conductor network is segmented into multiple conductive elements with different impedance characteristics. By dividing the conductor system into segments with optimized local properties, the overall system can maintain sufficient current flow while providing precise moisture location information through differential impedance measurements across the segmented conductor elements.
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 system provides accurate and reliable detection of moisture presence and spread, enabling effective monitoring and reporting of moisture levels, facilitating timely substrate replacement and reducing damage from moisture in critical areas.
Implementation Method 1
utilizing conductors and substrates of varying impedance and structure to detect moisture presence and spread, where the reader applies voltage and measures current to determine impedance changes
Data Source
AI summary
A system for detecting the spread of a liquid. The system detects the position of a first portion of the liquid and a second portion of the liquid to detect the spread.