Photo credit : Institute of Physics / Jas Lehal
How Do They Work?
Tunneling is a quantum effect observed in QTSSTM simple printable Tunneling Quantum Pressure Sensors which leverage this quantum phenomenon. Applied pressure causes significant variation in the tunneling current. The electrical resistance changes over many orders of magnitude based on pressure applied and the response is proportional and measurable. Conduction is achieved via tunneling of electrons through insulative barriers around the magnetite particles and is energy efficient.
Processed and engineered to precisely control quantum-mechanical effects they have unique ‘high-sensitivity’, ‘vast range’ and ‘multi-functional’ pressure sensing capabilities including capacitive and proximity outputs. In their standard state they are insulators and change into metallic-like conductors as pressure is applied, exhibiting resistance change over many orders of magnitude of over a billion ohms. Conduction is only ‘through’ them at the point of pressure which is beneficial for ‘curved’ surface applications as not dependent on ‘area change and air gaps’ like other sensors.
Their versatility means they can be used for the benefit of society across the economy and tie in with the UK’s strategy to become a quantum enabled economy.
