Dear All
Is there any reference design or application note on how to create the circuit for a EC and PH probe circuit for liquid substances?
Or if someone can point me in the right direction.
Thanks
Regards
DJ
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Dear All
Is there any reference design or application note on how to create the circuit for a EC and PH probe circuit for liquid substances?
Or if someone can point me in the right direction.
Thanks
Regards
DJ
Dharmesh,
There is a couple of approaches used in Electrical Conductivity depending on your application. If you are considering Inductive Sensing check out the products available and for any Inductive Sensing specific questions please go to the Inductive Sensing Forum.
If you are using electrode conductivity sensors you will need to work on your signal conditioning, refer to the following E2E Post for reference:
Dharmesh,
I hope I can address some of your questions for for more specifics I would recommend posting on the forum of the technology you are considering (e.g. Inductive Sensing Forum or Precision Amplifiers Forum).
Dharmesh Joshi said:Can you please explain what you mean by signal conditioning? Would this mean by signal output such as sine wave?
Dharmesh Joshi said:I am thinking using the PWM output of my microcontroller. I am not sure how this would be incorporated as an AC signal, with 3.3V... As suggested to use an transimpedance amplifier, which is first schematic, but is the second schematic is total different design?
Dharmesh Joshi said:Where would probes connect? Would you have any document on this?