This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Taoufik -
As humidity changes in an environment (we generally assume air), the polymer begins to absorb/shed water molecules from that surrounding (air) environment, which alters the dielectric constant of the capacitor sensor.
Do you mean a different atmosphere all together? Would you perhaps elaborate a bit more as to the operating conditions / your goals in the application?
Josh,
What I have in mind is to use the HDC1010 to measure water content in some fluids.
Thanks,
Dear Taoufik -
The HDC devices are relying on moisture in the air to operate correctly. They are not meant to be immersed in anything.
I have moved this over to another Forum (for FDC, PGA, etc. devices) where they may have some thoughts on using those parts.
I would imagine a prox sensor reference could be repurposed into a liquid discernment, if the tech allows.
Hello Taoufik,
For measuring changes in concentration we have typically seen ultrasonic devices being preferred. We have a user who has done extensive analysis on the TDC1000 product and can be found here https://www.element14.com/community/groups/roadtest/blog/2015/12/27/ti-ultrasonic-sensor--liquid-identification-and-concentration
Let us know how we can help!