Force Distribution Sensor with Detachable Sensor Sheet
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Solution Overview
Problem
Existing force distribution sensors cannot replace the sensor layer without damaging the array substrate, as the sensor layer is fixed to the substrate, making it impossible to repair or replace when it degrades.
Innovation Solution
A force distribution sensor design that includes a sensor sheet with a sensor layer and a protective sheet, where the sensor sheet is detachably attached to the array substrate using a bonding layer and a fixation component, allowing for easy replacement without applying load to the substrate, thus preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sensor layer is fixed to the array substrate by a bonding agent, then the sensor layer maintains stable position and detection accuracy, but the array substrate cannot be repaired or replaced when the sensor layer degrades
Solution Approach 1:
The sensor sheet is segmented into a sensor layer and a base material layer that can be separated. The sensor layer is detachably attached to the array substrate through the base material, allowing the sensor layer to be replaced independently without damaging the substrate. This segmentation enables repairability while maintaining detection accuracy during operation.
Solution Approach 2:
The attachment between the sensor sheet and array substrate is made dynamic rather than permanent. The sensor sheet can be detachably attached and detached as needed, transitioning between fixed and movable states. This dynamic attachment allows the sensor layer to be replaced when degraded while maintaining stable positioning during detection.
2Stability of the object's composition
If the sensor layer is permanently bonded to the array substrate, then structural stability is improved, but replacement of the sensor layer becomes impossible without damaging the substrate
Solution Approach 1:
The sensor assembly is segmented into replaceable sensor layer components and a permanent array substrate. The sensor sheet serves as an intermediate component that provides both stability during operation and replaceability when needed, resolving the contradiction between structural integrity and adaptability.
Solution Approach 2:
The sensor sheet acts as an intermediary component between the array substrate and the sensor layer. It provides stable attachment during operation while enabling easy replacement of the sensor layer, serving as a mediator that reconciles the conflicting requirements of structural stability and replaceability.
3Measurement precision
If the sensor sheet overlaps the array substrate edges, then complete coverage and detection accuracy are improved, but the sensor sheet cannot be detached without applying load to the substrate
Solution Approach 1:
The sensor sheet is segmented into a sensor layer region that overlaps the array substrate for detection accuracy, and a base material region that extends beyond the substrate edges for detachment. This segmentation allows complete coverage during operation while enabling easy removal without substrate damage.
Solution Approach 2:
The sensor sheet extends into a second dimension beyond the array substrate edges. This dimensional extension provides attachment areas that are spatially separated from the substrate, allowing the sensor sheet to be detached without applying load to the substrate while maintaining complete coverage during operation.
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
Enables the replacement of the sensor sheet without damaging the array substrate, improving the sensor's longevity and sensitivity by preventing substrate degradation and maintaining accurate force detection.
Implementation Method 1
a bonding layer provided on a surface of the protective base material, the surface facing in the second direction
Implementation Method 2
a sensor layer provided on the second surface and opposite the array electrode
Data Source
AI summary
A force distribution sensor includes an array substrate, a sensor sheet, and a protective sheet that are stacked in order on a predetermined installation surface. The array substrate includes a first surface on which the sensor sheet is disposed and that faces in a first direction, and a plurality of array electrodes provided on the first surface.