FAQs Wearable Sensors
Stretch sensors are soft pieces of elastic material that transmit information about how much they are being stretched. This is useful when you want to measure deformation of the human body.
Our stretch sensors are elastic capacitors made of a laminated polymer structure. The capacitance of the structure changes when the sensor is stretched, we measure this change and relate it to deformation.
Polymeric stretchy capacitors have a number of non-ideal characteristics and problems. The electrodes have an unpredictable resistance, capacitances are small and susceptible to parasitic effects, and there is a complex electromechanical impedance matching problem at the connections. StretchSense has solved these problems to provide you with precise high quality stretch sensors.
Stretch sensors are good at measuring human body motion for:
- Animation / motion capture and gaming
- Interacting with portable electronic / augmented reality devices
- Health and rehabilitation
- Sports training
StretchSense sells evaluation kits in a form factor suitable for general experimentation. These are not optimised for any given application. If you need changes made to the basic sensor please get in touch. We can supply different sizes, sensitivities, stiffness's, interfaces, geometries, speeds, environmental tolerances and more. Check out a full list of our services or contact us directly about your specific requirements.
Our stretch sensors are based on capacitive sensing which means that they provide very stable and repeatable data when stretched. Sensors based on resistive principles often suffer from drift and rate dependent effects.