SensoInk® Membrane Potentiometer

SensoInk® PET

Polymer paste printed on foil

For applications on radial surfaces (tubes) usually PET or Kapton foils are used. Hoffmann + Krippner has developed a paste formula that allows to print abrasion and chemically resistant resistive paths on inexpensive PET. In order to achieve these specifications a polymer thick film paste, already in use by H+K, was modified to match the temperature level of the PET foil that the paste can be completely cross-linked and hardens. In terms of abrasion resistance and chemical resistance this technology is comparable to conductive polymers on printed circuit boards.

Technical Details

  • ► Operating temperature: -25°C to +55°C
  • ► Storage temperature: -25°C to +85°C
  • ► Linear design: up to 900mm
  • ► Up to 3 million operations
  • ► Linearity: 4% radial design, 2% linear design
  • ► IP Rating: up to IP65
  • ► Flat design starting at 0.5mm


  • ► Operation possible by hand or wiper
  • ► Easily adapted to customer specific design


  • ► Collector membrane as wiper tap
  • ► Spacers
  • ► Potentiometer resistive track
  • ► Adhesive film

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