Braided Sensing Circuit for Curved Surface Profile Measurement
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Solution Overview
Problem
Existing capacitive screens face limitations in durability and flexibility due to their deformable materials, which are prone to damage and have poor tensile properties, and traditional three-coordinates measuring machines are complex and costly, leading to inefficiencies in curved surface profiling.
Innovation Solution
A sensing circuit with braided conductors and flexible substrates, allowing for flexible attachment to irregular surfaces and enabling precise measurement of curved surfaces through electric field induction, combined with a processing method that includes insulation and lead guidance for signal output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional sputtering and coating methods are used to process sensing circuits, then the sensing circuit can be manufactured, but the processing procedure becomes complicated and the processing cost increases
Solution Approach 1:
The patent replaces traditional sputtering and coating methods with a braiding process. Conductors are braided together with flexible substrates to form the sensing circuit, eliminating the need for complex vacuum deposition equipment and multiple processing steps. This mechanical braiding approach simplifies the manufacturing process while maintaining circuit functionality.
Solution Approach 2:
The patent creates a composite structure by braiding conductors with flexible substrates. This composite approach integrates the circuit trace and support structure into a single flexible unit, eliminating separate processing steps for substrate preparation, pattern deposition, and alignment that are required in traditional sputtering and coating methods.
2Ease of manufacture
If traditional sputtering and coating methods are used to process sensing circuits, then the sensing circuit can be manufactured, but the processing cost increases
Solution Approach 1:
The braiding process replaces expensive vacuum deposition equipment and complex coating facilities with simpler mechanical braiding machinery. This substitution significantly reduces capital equipment costs and processing requirements while achieving the same circuit fabrication goal.
Solution Approach 2:
The patent changes the fundamental processing parameter from thermal/vacuum deposition to mechanical braiding. This parameter change transforms a high-cost, high-complexity process into a lower-cost, lower-complexity process while maintaining the ability to create functional sensing circuits.
3Adaptability or versatility
If deformable materials are used in capacitive screens, then the screen can be flexible, but the material is likely to be excessively damaged due to deformation and has short life
Solution Approach 1:
The patent uses flexible substrates as the base material for the sensing circuit. These substrates are specifically designed to be flexible yet durable, allowing the circuit to bend and conform to surfaces without suffering from the degradation issues of traditional deformable capacitive screen materials. The flexible substrate provides structural support while maintaining adaptability.
Solution Approach 2:
By braiding conductors with flexible substrates, the patent creates a composite structure where the substrate provides mechanical strength and flexibility, while the braided conductors provide electrical functionality. This composite approach enhances overall durability compared to using deformable materials alone in traditional capacitive screens.
4Strength
If the sensing circuit is made rigid for structural stability, then the circuit is durable, but it cannot be flexibly tensile and has poorer tensile property
Solution Approach 1:
The patent employs flexible substrates that inherently possess both strength and flexibility. These substrates are designed to withstand tensile forces while maintaining their structural integrity and allowing the sensing circuit to be stretched and conform to various surfaces, eliminating the need to choose between rigidity and flexibility.
Solution Approach 2:
The braided structure of the sensing circuit allows it to dynamically adapt to deformation. When subjected to tensile forces, the braided conductors and flexible substrates can adjust their configuration, distributing stress evenly and maintaining electrical connectivity while accommodating the mechanical deformation required for flexibility.
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
The solution provides enhanced durability and flexibility for the sensing circuit, enabling real-time monitoring and precise measurement of curved surfaces with improved safety and efficiency, reducing production costs and complexity.
Implementation Method 1
restoring position data of each of electric field channels by detecting a distance value between every two adjacent electric field channels on the sensing circuit
Data Source
AI summary
The present invention discloses a sensing circuit, a processing method of the sensing circuit and a curved surface profile measuring method. Conductors of the sensing circuit are arranged in flexible protection bodies in a braiding manner, and the conductors and the flexible protection bodies are at a compressed state. Therefore, the sensing circuit of the present invention has better flexibility and tensile property, can be attached to a surface of equipment, can be used for sensing multiple situations of the equipment, such as slight touch and collision of a large displacement, and can also be applied to precise measurement of a size of a curved surface profile.