Micro-electro-mechanical systems (MEMS) are a promising solution for realising high-performance, yet small and low-cost sensors for future applications ranging from medical diagnostics and navigation to highly sensitive measurements of temperature, pressure and vibration. Recently, a new MEMS sensor paradigm based on the concept of nonlinear dynamics have been successfully demonstrated, that show significant improvements in sensor performance and specifications. This PhD project will explore new pathways in the rich field of nonlinear dynamics, and develop new sensor technologies with enhanced performance such as sensitivity, resolution and power consumption.
This interdisciplinary project will focus on two main aspects:
- Theory: you will explore a variety of nonlinear effects, including but not limited to duffing nonlinearity, internal resonance and combination resonance, within a micro-structure (e.g. micro-resonator). You will also develop the corresponding theoretical models using Matlab, Python or Simulink. This will help identify key design parameters, and will be beneficial in predicting the sensor performance.
- Device and system: informed by theoretical models and simulations based on finite element analysis, you will design and fabricate a suite of MEMS sensors that exploit nonlinear effects. You will also design and implement relevant analogue and digital electronic circuitry, which will be essential to characterise the nonlinear effects and sensor performance.
This project will be jointly supervised by Dr Chun Zhao and Dr Steve Johnson in the Department of Electronic Engineering, University of York. The student will access the well-equipped laboratories available across the University and will gain comprehensive training and experience in a wide range of tasks essential in the development of MEMS sensors, including device simulation, microfabrication and characterisation. Full-time training for postgraduate students, tailored to their particular degree background, is provided within the active research groups.
Academic Requirements: It is preferred that candidates hold a 1st class honours degree in a discipline relevant to the PhD research project (e.g. Physics or Engineering), however, the required minimum academic qualification for the above studentship is a 2:1 honours degree or equivalent. Applications will be considered on a competitive basis with regard to the candidate’s qualifications, skills, experience and interests.
How to Apply: Applicants must apply via the University’s online application system at https://www.york.ac.uk/study/postgraduate-research/apply/. Please read the application guidance first so that you understand the various steps in the application process. To apply, please select the PhD in Electronic Engineering for October 2022 entry. Please specify in your PhD application that you would like to be considered for this studentship.
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