Public Lab do great things to not only explain ‘citizen science’ initiatives and needs but to make them affordable too – this CT sensor housed in PVC by user bhickman is definitely one such project. Conductivity calibration and a further explaining of the build can be found here.
The goal of this project was to make a conductivity and temperature (CT) sensor that gives accurate and repeatable measurements while still being affordable. In the quest for that goal, a simple circuit board and probe were designed. The design applies an AC square wave across a voltage divider, where one of the resistors is a know value and the second is determined by the resistance of the solution being measured.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — Transforming Today’s Bad Jobs into Tomorrow’s Good Jobs
Wearables — Make metallic magic
Electronics — Inadequate volt signal
Biohacking — Arduino Based “Row Bots” Test Rowing Efficiency
No comments yet.
Sorry, the comment form is closed at this time.