Inductively coupled plasma reactive ion etching of high aspect ratio structures on 4H-SiC for MEMS applications

As silicon carbide(SiC) gets more and more attention from the semiconductor industry due to its robust mechanical and chemical properties, reliable and standardized processing technologies such as reactive ion etching(RIE) for SiC are in great demand. This is because of the difficulty and challenge of fabricating micro devices on the SiC...

Contactless Inductive Power and Data Transfer: For use in E-Textiles

Distributing power and data around a garment is a common problem in sensor enabled e-textiles, as connecting separate electronic subsystems together using connectors and wires has proven to be unreliable and cumbersome. In this work a solution is presented that will eliminate the connectors by using two pairs of short-range wireless inductive...

Weight sensor readout system: Accurately measuring the resonance frequency of a passive wireless RLC resonator

This thesis’s objective was to re-design a weight sensor readout system for Intralox, an international manufacturer of conveyor belts and equipment. Intralox’s current implementation is expensive, too complicated, and inaccurate. After considering several possible readout implementations, an inductively coupled solution with a frequency-based...

Wireless passive weight sensor: Design and simulation of an RLC-resonance sensor for weight sensing in conveyor belts

This thesis presents a resonant sensor circuit design that converts the deformation of a load cell in a conveyor belt into a change in resonance frequency. The sensor is inductively coupled to a reader circuit using planar PCB inductor coils. A sensor circuit was designed, fitted on a square PCB with 14.14 mm side length. The circuit consists of...

Wireless Charger for Hand-held Mobile Devices: EE3L11 - BSc Project: Final Thesis

In recent years the field of wireless charging has seen remarkable developments. More and more devices like mobile phones and laptops can be charged wirelessly, and larger equipment like electric vehicles are likely to follow the same path. The air gaps over which the power can be transferred keeps increasing, as do the <br/>amount of power that...

A Wireless Charging solution for the Zebro

The Zebro is a six legged autonomous robot, designed to be deployed in swarms. Charging the battery is still done manually. To further increase the autonomous abilities of the Zebro, a wireless charging station and module is designed. The charging station is fully modular and interconnected by charging pads. This opens the possibility of...