Guhan Sundar

Kernel

Research Engineer · Los Angeles, CA · 2019-10 → 2021-04 · 1y 6m

Sensor assembly, signal processing, and human studies for Kernel Flux, a 432-magnetometer MEG system.

I worked on Kernel Flux, a helmet that measured the magnetic fields produced by brain activity. My work covered sensor assembly and calibration, CAD fixtures, Python analysis, and participant studies.

I often tested the sensors on myself. Noise measurements and recorded brain responses helped us evaluate changes to the hardware. I co-authored the paper describing the completed system.

Flux required a magnetically shielded room. Working within that constraint made me interested in how brain measurements could become easier to collect outside a specialized lab. Kernel later discontinued Flux.

Threads

On the record

Assets

  • Paper, SPIE 2021 — Kernel Flux: a whole-head 432-magnetometer OP-MEG system for brain activity imaging during natural human experiences

    paper

    Paper, SPIE 2021 — Kernel Flux: a whole-head 432-magnetometer OP-MEG system for brain activity imaging during natural human experiences

    2021-03-05

    Pratt et al. (38 authors including G. Sundar), "Kernel Flux: a whole-head 432-magnetometer optically-pumped magnetoencephalography (OP-MEG) system for brain activity imaging during natural human experiences," Proc. SPIE 11700, Optical and Quantum Sensing and Precision Metrology, 1170032 (2021). DOI 10.1117/12.2581794.

  • Guhan wearing the Kernel Flux OPM-MEG helmet

    image

    Guhan wearing the Kernel Flux OPM-MEG helmet

    2020