Hybrid Capacitive Resistive Sensor for Shock and Deformation
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Solution Overview
Problem
Existing hybrid support sensors combining capacitive and resistive detectors face challenges in meeting mechanical resistance, humidity resistance, and radiated field constraints due to the weak elasticity of conventional capacitive detectors and complex manufacturing processes.
Innovation Solution
A hybrid support sensor design featuring a capacitive detector with a thin protective layer (0.15-0.35 mm) and a resistive detector, connected via a thin adhesive layer (<0.5 mm) to facilitate deformation detection and meet high resistance requirements, using a small frame and specific materials like Gorilla Glass and silver nano-wires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conventional capacitive detector with thick protective layer is used, then shock resistance and mechanical strength are improved, but deformation detection capability deteriorates
Solution Approach 1:
The sensor is divided into two independent detection systems: a capacitive detector for shock resistance and a resistive detector for deformation detection. Each detector can be optimized independently - the capacitive detector uses a thick protective layer for shock resistance while the resistive detector uses a thin flexible layer for deformation detection, eliminating the trade-off between these two functions.
Solution Approach 2:
The patent combines a capacitive detector and a resistive detector into a single hybrid sensor assembly. The capacitive detector provides shock resistance and the resistive detector provides deformation detection capability, achieving both requirements simultaneously that cannot be met by either detector alone.
2Measurement precision
If a thin protective layer is used to improve deformation detection, then measurement precision is improved, but shock resistance deteriorates
Solution Approach 1:
The sensor is divided into two independent detection systems: a capacitive detector for shock resistance and a resistive detector for deformation detection. Each detector can be optimized independently - the capacitive detector uses a thick protective layer for shock resistance while the resistive detector uses a thin flexible layer for deformation detection, eliminating the trade-off between these two functions.
Solution Approach 2:
The patent combines a capacitive detector and a resistive detector into a single hybrid sensor assembly. The capacitive detector provides shock resistance and the resistive detector provides deformation detection capability, achieving both requirements simultaneously that cannot be met by either detector alone.
3Measurement precision
If a hybrid sensor combining capacitive and resistive detectors is used, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent combines a capacitive detector and a resistive detector into a single hybrid sensor assembly. The capacitive detector provides shock resistance and the resistive detector provides deformation detection capability, achieving both requirements simultaneously that cannot be met by either detector alone.
Solution Approach 2:
The hybrid sensor assembly performs multiple functions simultaneously: the capacitive detector provides shock resistance and the resistive detector provides deformation detection. This multi-functionality allows a single sensor system to replace what would traditionally require separate sensors or additional validation systems.
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 design enhances deformation detection and meets industrial environment constraints for shock resistance, humidity, and radiated fields, while reducing sensor thickness and improving sensitivity.
Implementation Method 1
a capacitive detector (11) comprising: a protective layer (12), a first electrode (14) disposed under said protective layer, a first insulating layer (13) disposed under said first electrode (14), a second electrode (16) disposed under said first insulating layer (13) and a second insulating layer (15) disposed under said second electrode (16)
Implementation Method 2
a resistive detector (21) formed by a deformable upper layer (22) connected by a frame (25) to a detector (24) arranged under said deformable upper layer (22)
Data Source
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AI summary
The invention relates to a support sensor (10) comprising: - a capacitive detector (11) comprising: a protective layer (12), a first insulating layer (13) disposed under said protective layer (12), a first electrode (14) disposed under said first insulating layer (13), a second insulating layer (15) disposed under said first electrode (14) and a second electrode (16) disposed under said second layer (15); - a resistive detector (21) formed by a deformable upper layer (22) connected to a detector (24) disposed under said deformable upper layer (22) by means of a frame (25); said detector (24) being fixed on a substrate (17) said capacitive detector (11) being glued to said resistive detector (21) by means of an adhesive layer (26) the thickness of which is less than 0.5 mm; said support sensor (10) having a surface area of less than 1500 cm2;and said protective layer (12) having a thickness of between 0.15 and 0.35 mm.;