Seals that survive the cold
Custom-machined end caps use internal O-rings. The team researched thermal expansion so the seals hold across the temperature swing from a warm deck to cold water.
Profiling float · 2026
ADAM
Aquatic Drifter for Autonomous Monitoring. It sinks and rises on its own, logging depth on the way, like the floats that measure the ocean's health.
How it works
A buoyancy engine in a tube.
A peristaltic pump moves water in and out of an internal bladder, changing ADAM's density so it can complete vertical profiles without a tether.
- Hull
- 4 in polycarbonate tube, machined end caps, internal O-rings
- Buoyancy
- Peristaltic pump + internal bladder
- Control
- Custom PCB, Raspberry Pi Pico (MicroPython)
- Sensing
- Blue Robotics depth sensor
- Telemetry
- LoRa
- Power
- Independent NiMH pack, isolated logic and pump rails
In 3D
Look inside the tube.
ADAM's float CAD: end caps, recovery handles and the rails that carry the pump and electronics. Drag to orbit, pinch or scroll to zoom.
Quiet power
An independent NiMH pack with its own regulation feeds the logic and the pump separately, so motor noise doesn't corrupt the depth readings.
Long-range, low-power radio
A LoRa module sends telemetry to the surface from a custom PCB built around a Raspberry Pi Pico running MicroPython.
