Electronic Hydrometer
From Open Source Ecology
Basics
- A Hydrometer that is in the form of an electric sensor
- Various methods exist (which this page will explore), but the main use case is in monitoring and/or automating Fermenters and other Bioreactors
Buoyancy Based
Sink/Float Height
THE BEER BUG™ (BEERBUG WIFI DIGITAL HYDROMETER)
- Uses a weight and a load cell perhaps?
- Closed source either way
- It did also have a temperature probe, and an integrated airlock
Tilt
iSpindle
- The iSpindle is an Open Source project that is essentially a long unbalanced "pill" of sorts
- "The system is based around the use of a heeling (or tilting) cylinder, an ingenious and easy concept - you do not need any external reference (except for gravity) and the cylinder is extremely easy to keep clean. The inclination angle changes in relation to the buoyancy and thus directly in relation to the sugar content. There is an angle formed between the center of mass and the center of buoyancy depending on the density of the fluid."
- Their Main website in German
Pressure Based
Internal Links
External Links
