Peratech’s force-sensitive interface brings extra functionality to mobile displays

29 August 2018

Credit: Peratech

The force touch sensor uses proprietary quantum tunnelling composite technology to provide an array of single-point sensors, which can be used alongside a position sensor – to accurately measure force and correlate it with position.

Alongside the QTR technology (see below), the distributed force array (DFA) sensor’s variable input force allows for additional, or new, functionality, such as the ability to navigate device menus and perform other operations via single-finger touch. The DFA sensor also allows for correct haptic feedback when the force reaches a pre-selected activation point: a feature that obviates false touch situations.

In multi-touch applications, the DFA’s proportional force sensing feature can determine the ratio of forces between presses (such as a harder press to the left or right), which can have benefits in improved control, especially in gaming applications.

Peratech’s distributed force array sensors are customisable, cost effective, low power and they ultimately welcome in the next-generation in HMI experiences – enabling new gestures, simplified interfaces, and unlimited flexibility. Peratech supplies the DFA sensors with control electronics and software.

More information on Peratech’s QTC technology

Credit: Peratech

Based on patented Quantum Tunnelling Composite (QTC) technology, Peratech’s force sensors bring a new dimension to tactile, or force-touch controls. QTC materials change from being an almost perfect insulator – to becoming increasingly conductive in proportion to the amount of force applied to them.

The materials are very robust and resilient, so that changes in resistance, due to even the slightest pressure, are both predictable and repeatable over more than a million cycles.

For designers of HMIs, QTC technology offers unrivalled creative freedom and opportunities for product differentiation in both ergonomics and aesthetics. It makes touch buttons, panels and displays considerably more user-friendly than the average options.

The diverse applications for QTC force sensors include consumer and automotive electronics, smart home systems and appliances, and industrial controls. Over a million devices around the world now employ the technology. Peratech’s custom design and integration service minimises both cost and time-to-market.


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