Wearable or wearable devices such as activity monitors are a good example of the Internet of things, since things like electronics, software, sensors and connectivity are mechanisms that allow objects to exchange information over the Internet with a manufacturer, operator or other connected devices. But more and more miniaturization is needed.
A good example is this new accelerometer conceived thanks to graphene by an international research team that involves the Royal KTH Institute of Technology, the RWTH Aachen University and the AMO GmbH Research Institute, Aachen.
For decades, microelectromechanical systems (MEMS) have been the basis of new innovations in, for example, medical technology. Now these systems are starting to move to the next level: nanoelectromechanical systems or NEMS.
The measure by which any conductor is judged is the ease and speed with which electrons can move through it. At this point, along with its extraordinary mechanical resistance, Graphene is one of the most promising materials for an impressive variety of applications in nanoelectromechanical systems. As he explains Xuge Fan, KTH researcher:
We can reduce the components due to the thickness of the atomic scale of the material, and it has excellent electrical and mechanical properties. We create a piezoresistive NEMS accelerometer that is much smaller than any MEMS accelerometer currently available, but retains the sensitivity that these systems require. Over time, this could benefit mobile phones for navigation, mobile games and pedometers, as well as heart disease monitoring systems and motion capture devices that can monitor even the slightest movements of the human body.
Other potential uses of these NEMS transducers include ultraminiaturized sensors such as resonators, gyroscopes and microphones. In addition, these NEMS transducers can be used as a system to characterize the mechanical and electromechanical properties of graphene.