FDC1004: FDC1004 Water Sensing

Ali Movahedi

Part Number: FDC1004

Dear all,

We are making a wearable watch and I was wondering if I could use FDC1004 to detect when the watch is contacted water or if emerged in the water please.

Thanks,

mmsya

over 2 years ago

0 Justin Beigel over 2 years ago

TI__Mastermind 18545 points

Hello,

Yes, the FDC1004 can be used to determine the presence of water. In your application, the ability to determine the water will depend on the materials of the casing and the response you get from other interactions happening to the watch (like a hand interaction). Here are some documents we have that may be useful to this application:

FDC1004: Basics of Capacitive Sensing and Applications (Rev. A)
Capacitive Sensing: Out-of-Phase Liquid Level Technique
Capacitive Sensing: Ins and Outs of Active Shielding (Rev. A)

Best Regards,

Justin Beigel

0 Ali Movahedi over 2 years ago in reply to Justin Beigel

Intellectual 840 points

Thank you Justin, Let me review the material and get back with you.

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FDC1004: FDC1004 Water Sensing