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Pressure Sensing Fabric

Summary: Existing pressure sensing fabrics may involve two portions, i.e., insulating and conductive portions in the fabric, which increases the complexity of the fabric system and more important, and the instablization of the resistance-strain relationship during dynamic deformation which limits the application fields due to intrinsic properties difference between the two portions. These fabrics commonly employ two or more layers to accomplish the detecting functions. Such arrangements increase the thickness, weight, and cost of the sensors with some other disadvantages such as low accuracy, instability, etc. This invention describes a pressure sensing fabric have a general structure as simple as a plurality of electrically conducting yarns forming interlocking loops of yarns. The pressure sensing fabric is found not only be able to sense pressure but also the magnitude of the pressure

Supplementary Information: Patent Number: US7544627B2
Application Number: US2005127142A
Inventor: Tao, Xiao-ming | Zhang, Hui
Priority Date: 12 May 2005
Priority Number: US7544627B2
Application Date: 12 May 2005
Publication Date: 9 Jun 2009
IPC Current: D03D001500 | D04B000114
US Class: 442189 | 442301 | 442308
Assignee Applicant: The Hong Kong Polytechnic University
Title: Pressure sensing fabric
Usefulness: Pressure sensing fabric
Summary: The pressure or strain/position sensing fabric is useful in furniture, apparel, composites for vehicles, landscape, dams, highways, and buildings. It is used as resistive strain sensors for single points or distributed pressure measurements utilizing their changes in the electrical resistance under mechanical deformations. It is used to measure deformation caused by lateral compression or tensile force in the plane of the fabric. It can also be used as pressure (tactile) mapping sensor measuring both the position of the applied force and its magnitude simultaneously. It is used in industry testing fields such as strain gauges.
Novelty: Pressure or strain/position sensing fabric useful in furniture, apparel, composites for vehicles, landscape, dams, highways, and buildings, includes electrically conducting yarn(s) forming interlocking rings

Industry: Textile/fashion

Sub Category: Fabric Engineering

Application No.: US2005127142A

Others: TAO Xiao-ming
ZHANG Hui

Country/Region: USA

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