Ink and foil-based sensors, light and flexible

June 10, 2015 // By Julien Happich
Hoffmann Krippner's unique SensoInk and SensoFoil intelligent sensing technologies can be used for Internet of Things applications such as process automation, position tracking and real time supply chain support.

A 5V analog solution with low power requirements, SensoInk is based on printed polymer pastes over thin flexible films. It can be printed as potentiometers, resistors, switches or keyboard contacts on circuit boards or electronic components, to operate at 5V.

The technology has no negative electromagnetic effects (full electromagnetic compatibility) and only two components are required for signal transformation: a printed potentiometer track on a carrier material (e.g. FR4 or PET foil) and a conductive wiper.

As a product implementation, Sensofoil is a thin-film membrane potentiometer as flat as 0.5mm, with a repeat accuracy of 1mm to 10µm. The standard linear Sensofoil is available in lengths of 50mm up to 500mm, 40mm wide rotary, and custom sizes and shapes. It comes in PET (ultra-thin), Magnet (contactless – long lifetime) or Hybrid technology (extended lifetime and temperature range).

Visit Hoffmann+Krippner at