Architecture
These calculators were built using CALCONIC_ and are part of blog posts on my weblog.
- Battery Capacity from Body Weight
- Battery Life Estimate
- Determine Battery Capacity and Weight from Volume
- Long-term Memory Storage Calculator
- Solar Charging LiPo Battery
Batteries are typically housed in the same case as the electronic components. A modular design, although potentially more challenging from a surgical point of view, may be useful for several reasons:
- Battery size could be changed based on study needs (potentially reducing weight).
- Bio-logger electronics can be more strategically placed for recording fidelity (e.g., near the skull).
- Batteries could be 'hot-swapped' for long-term studies without modifying bio-logger placement.
- Modular 'packs' open the possibility of designing wireless charging systems that are more optimally placed.
Related Literature:
- Batteries used to Power Implantable Biomedical Devices
- A commentary on why implanting bio-loggers may be the best and most ethical option
- The Source of EEG is a very in-depth look at where electrodes should be placed and where the signals being recorded are actually generated in the brain.