Hoffmann + Krippner GmbH & Co. KG & Co. KG

Potentiometer

Flat, durable and reliable

Foil potentiometers are the ideal solution for displacement and angle measurements. The printed resistor track provides precise measurement results and stands out with a long service life and flat design. Whether linear or individually shaped – almost any customer requirement can be realized easily and quickly.

Through innovative product development and the highest quality standards, we offer reliable and cost-effective solutions with our foil potentiometers. The technology stands out with a service life of up to 1 million movements at operating temperatures of up to 80°C.

Two linear foil potentiometers

Foil potentiometers are the ideal solution for displacement and angle measurements. The printed resistor track provides precise measurement results and stands out with a long service life and flat design. Whether linear or individually shaped – almost any customer requirement can be realized easily and quickly.

Through innovative product development and the highest quality standards, we offer reliable and cost-effective solutions with our foil potentiometers. The technology stands out with a service life of up to 1 million movements at operating temperatures of up to 80°C.

Functionality of the foil potentiometer

Our Sensofoil®foil potentiometers consist of several layers of foil that are separated from each other by a spacer. Only when mechanical pressure is applied using a slider or a finger do the foil layers connect with each other and generate an evaluable signal.

The top film layer, the collector film, protects the resistance track from external influences such as dust or liquids. The The entire electrical function is therefore inside the potentiometer and delivers perfect measurement conditions. Our foil potentiometers function as potentiometric voltage dividers.

More information about potentiometers in the Induux Wiki.

Properties:

  • Splash-proof to IP54
  • Service life up to 1 million movements
  • Quick and easy adaptation to individual customer requirements
  • Durable due to non-occurring wear and tear

Individual solutions from Hoffmann + Krippner

Every project requires a precisely coordinated solution. We develop control units and sensor foils that are optimally suited to your application in terms of function, design and robustness – from technology selection to series production.

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Graphic box elements for Hoffmann + Krippner

Potentiometer solutions

Foil potentiometer
for temperatures up to +55 °C

Our Sensofoil® foil potentiometers for temperature ranges from -25°C to +55°C can be manufactured in the following design:

The potentiometer resitive elements are printed onto the base film and bonded to the remaining film layers. The design of the potentiometer can be linear as well as rotary.

Potentiometer assembly:

  • Collector film as wiper tap
  • Spacer (spacer)
  • Potentiometer resitive elements
  • Adhesive on the back

Technical details:

  • Linear and rotary designs
  • Flat overall height starting at 0.5 mm
  • Lengths up to 900 mm
  • Widths starting at 10 mm
  • Operating temperature from -25°C to +55°C
  • Storage temperature from -25°C to +85°C
Hoffmann + Krippner - Exploded view of a linear film potentiometer
Hoffmann + Krippner - Exploded view of a rotary foil potentiometer
Accessories

For signal generation of our potentiometers, a suitable wiper can be used in addition to finger actuation. For membrane potentiometers with PET surface we recommend wipers with a plastic head.

The wipers must be integrated into a wiper carrier, such as a custom injection molded part. We are happy to support you in the development of your potentiometer solution.

three different sliders for potentiometer

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ddpossibilities of our potentiometer solutions.