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Peratech’s pressure-sensing material can be used in conjunction with almost any surface, including touchscreens. In short, the material is a Quantum Tunnelling Composite (QTC) that changes in electrical resistance based on the force that is applied to it – the more force, the less resistance. This is achieved through the quantum tunnelling effect alongside other complementary conduction mechanisms.
Peratech’s sensor material is available in an opaque or clear, screen-printable, and bendable formulation that is 200 µm thick, works under multiple surfaces, and exhibits multi-touch capabilities down to 10 g pressure, including with gloved hands and passive stylus. Unlike capacitive touch mechanisms, it works when wet, and the QTC has a much lower power consumption than capacitive alternatives. Since Peratech’s sensor material is not necessarily linked to a visual user interface, it can be employed in much smaller parts of a product while still replacing a mechanical part.
Due to the complex nature of the technology and the high amount of calibration required when combining the QTC with other materials, a general development board was found to not be useful to the average engineer, though they have existed in the past. Given this, if you are interested in their technology, we at ipXchange would endeavour to connect you with Peratech for a thorough consultation regarding your project. Should they be deemed the right company for the task, Peratech would then work with your engineers towards an end-to-end solution for your product, including designing the sensors to operate in conjunction with your required materials and providing the electronic, software, and control solutions that allow the sensors to operate in your application.
(All images sourced from Peratech)