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Textile-like capacitive pressure sensor and method of mapping the pressure exerted at points of a surface of a flexible and pliable object, particularly of a sail

  • US 6,826,968 B2
  • Filed: 11/28/2001
  • Issued: 12/07/2004
  • Est. Priority Date: 11/28/2000
  • Status: Active Grant
First Claim
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1. A device for detecting pressure exerted at different points of a flexible object, the device comprising;

  • an array of pressure sensing pixel capacitors comprising column electrodes and row electrodes orthogonal to each other, and a plurality of individually spaced apart elastically compressible dielectric pads positioned between each respective crossing of the column electrodes and row electrodes; and

    a system for biasing and reading the capacitance of the pressure sensing pixel capacitors, and comprising column electrode selection circuits, row electrode selection circuits, and a logic circuit connected to the column and row electrode selection circuits for sequentially scanning the pressure sensing pixel capacitors and outputting pixel values of the pressure for constructing a distribution map of the pressure over an area of the array.

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