- #1
DanTerp
- 2
- 0
Greetings!
I really would appreciate any insight regarding my project. I want to perform a form of electrochemical impedance spectroscopy on consumer electronic batteries (ie. measure the impedance of a battery - real and imaginary). Basically I want to create a device which is capable of doing one of two things:
The ideas I've had so far are:
Of course I also need to measure the battery voltage and current. I would like to be able to measure to a resolution of ~250uV and ~1mA.
If you have any advice I would be grateful.
I really would appreciate any insight regarding my project. I want to perform a form of electrochemical impedance spectroscopy on consumer electronic batteries (ie. measure the impedance of a battery - real and imaginary). Basically I want to create a device which is capable of doing one of two things:
- Draw current from a battery in a sinusoidal manner
- Draw current from a battery in such a way that causes the voltage of that battery to vary sinusoidally
The ideas I've had so far are:
- Use a digital rheostat (ie. constantly change the resistance value)
- Use a fixed resistor with a wienbridge oscillator as a reference voltage
Of course I also need to measure the battery voltage and current. I would like to be able to measure to a resolution of ~250uV and ~1mA.
If you have any advice I would be grateful.