Aerospace grade sensing textile with sensor topology
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Solution Overview
Problem
Current spacecraft materials are inadequate for effectively sensing and detecting high-velocity debris and spaceborne elements such as cosmic dust and plasma impacts, which pose risks due to limited sensitivity and surface area for charge detection.
Innovation Solution
A sensing textile comprising aerospace-grade fabric substrates integrated with piezoelectric fibers forming patterned topologies, coated with materials like gold to enhance charge plume production and mechanical resilience, increasing sensitivity and surface area for impact detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional spacecraft materials are used, then the spacecraft structure is simple and lightweight, but the sensitivity and surface area for detecting high-velocity debris and plasma impacts are insufficient
Solution Approach 1:
The patent combines multiple functions into a single integrated textile structure. The sensing fibers are woven directly into the spacecraft hull fabric, merging the structural skin and sensing detector into one composite material system. This eliminates the need for separate sensor arrays while maintaining high detection sensitivity across the entire spacecraft surface.
Solution Approach 2:
The sensing fibers extend in multiple dimensions from the fabric surface, creating a three-dimensional sensing network. Rather than flat two-dimensional sensor placement, the fibers protrude outward to increase effective surface area and capture impacts from various angles, dramatically enhancing detection capability without proportionally increasing complexity.
2Area of stationary object
If the sensing surface area is increased to detect more plasma charges and impacts, then detection capability improves, but the mechanical strength and structural integrity may be compromised
Solution Approach 1:
The sensing fibers are strategically distributed across the spacecraft hull with varying densities in different regions. Areas requiring higher detection sensitivity have concentrated fiber networks, while structurally critical areas maintain stronger fabric composition. This localized optimization allows maximum sensing surface area without compromising overall structural integrity.
Solution Approach 2:
The textile combines multiple material types: strong aerospace-grade fabric for structural integrity, piezoelectric sensing fibers for detection, and conductive coatings for charge collection. This composite structure leverages the strengths of each material - the fabric provides mechanical strength while the fibers and coatings provide sensing capability, achieving both large surface area and high strength simultaneously.
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 sensing textile significantly enhances the detection of high-velocity impacts and plasma charges, providing greater sensitivity and thermal management capabilities compared to conventional materials, while maintaining structural integrity in harsh space environments.
Implementation Method 1
the fiber sensors include one or more piezoelectric fibers
Implementation Method 2
coated with materials like gold to enhance charge plume production
Data Source
AI summary
Described herein, is a sensing textile for a spacecraft, comprising an aerospace-grade fabric substrate having a surface and one or more sensing fibers coupled to the aerospace-grade fabric substrate, wherein at least a subset of the sensing fibers extends above the surface of the substrate. In some embodiments, the sensing fibers comprises one or more of an impact sensor, a charge sensor, a thermal sensor or radiative surface. Some embodiments, the sensing fibers are configured to form one or more patterned topologies about the surface of the aerospace-grade fabric substrate. In some embodiments, the patterned topologies comprises one or more of a pile, looped pile, waffle, spacer, seersucker, plissé, or an embroidery.