It's a simple - and course - idea. Magnet glued to the top of the "vapor lock". Carefully observe its motion. CO2 is produced as a product of yeast fermenting simple sugars in the beer "mash". As they do so, they produce CO2. The CO2 escapes through the Vapor Lock. As it does so, part of the Vapor Lock assembly floats up, then down, in water. A magnet on this floating portion of the vapor lock and a hall-effect sensor above it should detect pulses of the metabolic activity.
It's a simple - and course - idea. Magnet glued to the top of the "vapor lock". Carefully observe its motion. CO2 is produced as a product of yeast fermenting simple sugars in the beer "mash". As they do so, they produce CO2. The CO2 escapes through the Vapor Lock. As it does so, part of the Vapor Lock assembly floats up, then down, in water. A magnet on this floating portion of the vapor lock and a hall-effect sensor above it should detect pulses of the metabolic activity.
macowell 1 year ago
Cool, I saw this on the DIY Bio forum. I'm not understanding how a hall-effect sensor and magnet would be able to measure CO2 production?
Grundalizer 1 year ago