Measurement of force and position in two dimensions in 3D printed capacitive and resistive sensors, using multi-frequency impedance readout.

MSc assignment

During this assignment, a flexible elastomeric 3D printed force and position sensor will be realized to measure force and position in 2D. A multi-frequency approach will be used to read out the designs of such a 2D sensor.

This approach measures both the change in capacitance, as well as the change in resistance due to an applied (changing) force at some position, at multiple frequencies simultaneously. First, this will be modelled using a coupled transmission line model. Next, to characterize the sensor, a setup will be built that applies an external force from a controlled source at a controlled position.

When time permits, this sensor will be realistically tested through actual loading by placing a foot of multiple test subjects on the sensor under various conditions