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
Features
- ► Operation possible by hand or wiper
- ► Easily adapted to customer specific design
Composition
- ► Collector membrane as wiper tap
- ► Spacers
- ► Potentiometer resistive track
- ► Adhesive film

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