Hello,
I'm new to the forum. I'm currently studying for an MSc in renewable energy. I have a little experience with basic electronics and arduino.
Ive just started (well i should have!) a year long experiment which involves a 16 channel data logger. Unfortunately I've underestimated the complexity of data logging!
The inputs to the logger need to be 0 - 1.225V. I need to measure the power consumption of 2 AC circuits, I have 2 CT Clamps for measuring current and need to measure voltage as well.
I'm considering adapting the first circuit on this page: http://microcontrollerslab.com/ac-voltage-measurement-using-microcontroller/
I'm not sure what to use as the ground connected to the 2200uf caps? Do the caps and the 2m2 resistors allow for a potential divider between AC and DC negative? Or is it a coil tap ground or something similar? If someone could clarify how this will work I'd really appreciate it! before I plug something in just to go bang!
Thank you,
Jim
I'm new to the forum. I'm currently studying for an MSc in renewable energy. I have a little experience with basic electronics and arduino.
Ive just started (well i should have!) a year long experiment which involves a 16 channel data logger. Unfortunately I've underestimated the complexity of data logging!
The inputs to the logger need to be 0 - 1.225V. I need to measure the power consumption of 2 AC circuits, I have 2 CT Clamps for measuring current and need to measure voltage as well.
I'm considering adapting the first circuit on this page: http://microcontrollerslab.com/ac-voltage-measurement-using-microcontroller/
I'm not sure what to use as the ground connected to the 2200uf caps? Do the caps and the 2m2 resistors allow for a potential divider between AC and DC negative? Or is it a coil tap ground or something similar? If someone could clarify how this will work I'd really appreciate it! before I plug something in just to go bang!
Thank you,
Jim