Hi all,
I'm looking to develop/source a datalogger that can measure in the single microamp range. It would be an inline current probe that would sit between an energy harvesting source and a battery and could detect with an accuracy of +/-100nA if at all possible!
Perhaps I'm looking for 2 things:
- The data logger would be relatively straight forward.
- The current sensor is where I'm running into difficulty, if there was an IC part someone had come across or an amplifier circuit with reasonably low levels of noise that someone could recommend.
What I would like is something I can leave to make automated sensor readings over time at set intervals. I'd prefer not to have to go down the labview Keithley metering route for cost reasons!
Any advice would be appreciated,
Greg.
I'm looking to develop/source a datalogger that can measure in the single microamp range. It would be an inline current probe that would sit between an energy harvesting source and a battery and could detect with an accuracy of +/-100nA if at all possible!
Perhaps I'm looking for 2 things:
- The data logger would be relatively straight forward.
- The current sensor is where I'm running into difficulty, if there was an IC part someone had come across or an amplifier circuit with reasonably low levels of noise that someone could recommend.
What I would like is something I can leave to make automated sensor readings over time at set intervals. I'd prefer not to have to go down the labview Keithley metering route for cost reasons!
Any advice would be appreciated,
Greg.