Engineering physics postgraduate personal statement example

Personal statement example

For most of my final-year project, my data would not behave. I was measuring how a thin steel cantilever loses energy when it vibrates in air. I clamped the strip to a bench, plucked it, and tracked its tip by bouncing a laser off a small mirror onto a split photodiode. The textbook model predicted that the amplitude would decay exponentially. My ring-down curves did, for the first second or so. After that the decay slowed noticeably. For two weeks I assumed I had a wiring fault.

The explanation turned out to be more interesting than a fault. At large amplitudes, the drag on the strip is not simply proportional to velocity. A quadratic term matters when the tip moves fast, and it fades as the motion dies away. Once I fitted a model containing both linear and quadratic damping, the residuals flattened. I could then separate the two contributions and see how each changed with the length of the strip. I also had to deal with practical problems. Mains interference appeared at 50 Hz, the clamp loosened slightly between sessions, and the bench vibrated whenever someone shut the lab door. I built a heavier clamp from offcut aluminium and moved my runs to early mornings. I also wrote a short Python script to reject traces with drifting baselines. The final report earned one of my highest marks. What I value most from it, though, is the habit of asking whether a discrepancy is noise or physics before deciding what to do about it.

That project is the main reason I am applying to study engineering physics rather than continuing in a purely theoretical direction. My degree gave me a solid grounding in classical mechanics, electromagnetism, quantum mechanics and statistical physics. I enjoyed the modules where a model met an instrument most of all. These included a second-year laboratory course on lock-in detection and an optics option in which we characterised a diffraction grating. I would like to develop that side much further at postgraduate level. I am particularly interested in sensing and measurement, and in the modelling that tells you what a sensor is really responding to. I am also keen to strengthen my numerical methods. My fitting worked, but I relied on library routines I only partly understood. I want to know when they fail.

Alongside my studies I have worked at a local cinema for three years, and I have been a shift supervisor for the last eighteen months. The job is unglamorous. I cash up, manage queues on busy release nights, deal with the occasional broken ice machine and arrange cover when someone calls in sick. It has made me calm under time pressure and good at explaining things clearly to people who are tired or irritated. Those skills are just as useful when sharing a laboratory.

On Tuesday evenings I tutor two Year 11 students in maths. I find that working out why a student is stuck on simultaneous equations sharpens my own explanations. At weekends I ring bells at our parish church. I learned as a teenager, and I now help teach beginners to handle a rope safely. It is a sociable, methodical hobby that rewards concentration and good timing, and it has nothing to do with my career plans, which is partly why I enjoy it.

I am applying now because my project showed me the kind of work I want to do. I want to build or use a measurement, find out where it disagrees with expectation, and reason carefully about why. I would bring careful experimental habits, reasonable programming ability and the steadiness that comes from years of evening shifts. In return, I hope to gain the deeper engineering and computational training needed to do this work properly.