Portfolio and writing
Build logs, characterization reports, reproduction write-ups, one-page memos, a poster, a personal site. Engineers who can write a clear page get promoted, and a resume cannot show judgment where a write-up can.
On this pageAn hour a week, forever
A resume says “designed an eight-channel EEGElectroencephalography (EEG) Recording the brain's electrical activity from electrodes on the scalp, a few tens of microvolts of blurred, summed cortical activity. Related: Electrocorticography (ECoG)Electrocorticography (ECoG) Recording from electrodes placed on the surface of the brain under the skull, usually during epilepsy surgery evaluation; cleaner and sharper than EEG. , Magnetoencephalography (MEG)Magnetoencephalography (MEG) Recording the tiny magnetic fields produced by cortical currents with superconducting sensors in a shielded room; less blurred by the skull than EEG, and far more expensive. , Volume conductionVolume conduction The spreading of currents from a source through the conductive tissues of the head, which is why one source shows up on many electrodes and why scalp EEG is blurry. , Microvolt (µV)Microvolt (µV) One millionth of a volt. Scalp EEG is tens of microvolts; a AA battery is 1.5 million of them. . Glossary entry amplifier.” A build log shows the schematic, the noise floorNoise floor What your instrument records when the input is shorted or connected to a perfectly quiet source; everything smaller than this is invisible to you. Related: Thermal (Johnson) noiseThermal (Johnson) noise The random voltage every resistor produces just by being warm; about 13 nanovolts per root hertz for 10 kilohms, which matters at microvolt levels. , CharacterizationCharacterization Measuring what your instrument actually does, such as its noise floor, bandwidth, and rejection, instead of assuming the datasheet. . Glossary entry with its bandwidth, the mistake that cost a week, and the sentence that says what you would do differently. Professors and recruiters read the second kind of thing, and almost no student produces it. The portfolio is the compound interest of this whole site: every project produces a document, and the documents accumulate into the thing that gets you hired.
The five documents
The build log. Every project. The template is in the build logs section: what I set out to do, what I did, what went wrong, what I measured, what I would change, what surprised me. Photos of failures. Written the week the project ends, while the failures are fresh.
The characterizationCharacterization Measuring what your instrument actually does, such as its noise floor, bandwidth, and rejection, instead of assuming the datasheet. Related: Noise floorNoise floor What your instrument records when the input is shorted or connected to a perfectly quiet source; everything smaller than this is invisible to you. , PhantomPhantom A physical stand-in for tissue, such as saline gelatin with embedded wires, used to test an instrument against known signals. , Common-mode rejection ratio (CMRR)Common-mode rejection ratio (CMRR) How much better an amplifier responds to a difference between its inputs than to a signal shared by both, in decibels; 100 dB means 100,000 times. . Glossary entry report. Every instrument. One page, numbers with units and conditions, a plot per number. The Phase 2 page has the template.
The reproduction write-up. Every paper you reproduce. Their number, your number, the gap, and why. The Phase 3 page.
The one-page memo. For anything you want someone to decide: a proposal to a lab, a request for equipment, a recommendation to a team. State the decision needed in the first line, the reasoning in three paragraphs, the ask at the end. Engineers who can do this get put in front of people who decide things.
The poster. By junior year, at least one. Big figures, few words, a title that states the result. Practice presenting it in two minutes and in ten.
The site
Put all of it on a personal website: a page per project, a page for the characterizationCharacterization Measuring what your instrument actually does, such as its noise floor, bandwidth, and rejection, instead of assuming the datasheet. Related: Noise floorNoise floor What your instrument records when the input is shorted or connected to a perfectly quiet source; everything smaller than this is invisible to you. , PhantomPhantom A physical stand-in for tissue, such as saline gelatin with embedded wires, used to test an instrument against known signals. , Common-mode rejection ratio (CMRR)Common-mode rejection ratio (CMRR) How much better an amplifier responds to a difference between its inputs than to a signal shared by both, in decibels; 100 dB means 100,000 times. . Glossary entry reports, a page for the reproductions, and a short about page with your spine and what you want to work on. A static site generator (this site is Astro; Hugo and Jekyll are fine) and a free host. Own the domain. Link it in every email to every professor and every application. When a recruiter searches your name, this is what they should find.
Keep other people’s data off it. Recordings from friends stay in the protocol’s storage, not on the web.
Writing well, the short version
Lead with the result. One idea per sentence. Numbers with units. Say what went wrong. Cut every adjective that is doing the work a number should do. Read it aloud once. The about page describes the voice this site uses; it works for your write-ups too, and the field-notes register (first person, honest, specific) is exactly right for a build log.
Talks
The NeurotechX club meeting, the lab meeting, the undergraduate symposium. Ten minutes on what you built, with the failures included. Every talk you give makes the next one easier and puts your name in a room.
- Set up the personal site this month, with one build log on it.
- After every project, the build log within a week.
- After every instrument, the characterizationCharacterization Measuring what your instrument actually does, such as its noise floor, bandwidth, and rejection, instead of assuming the datasheet. Related: Noise floorNoise floor What your instrument records when the input is shorted or connected to a perfectly quiet source; everything smaller than this is invisible to you. , PhantomPhantom A physical stand-in for tissue, such as saline gelatin with embedded wires, used to test an instrument against known signals. , Common-mode rejection ratio (CMRR)Common-mode rejection ratio (CMRR) How much better an amplifier responds to a difference between its inputs than to a signal shared by both, in decibels; 100 dB means 100,000 times. . Glossary entry report.
- Practice the one-page memo the first time you need something from a lab.
- Junior year: a poster and a talk.