Arduino Car Paint Thickness Indicator Meter

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A paint thickness indicator measure the thickness of paint or coatings on a metal surface. Although relatively simple to make, this is a very useful device especially when buying a car to check suspicious areas where auto putty has been applied under the paint.

Detailed instructions, schematic, and code at:

Chapters:
0:06 Short Demo
1:32 Description
2:19 Inside
3:22 Schematic
4:11 Measuring Procedure
4:51 Demonstration - Fe
6:10 Demonstration - Al
6:51 Fe + Al
7:49 Conclusion
8:14 Building

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by mircemk
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#arduino #meter #electronics #pcbway
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Great video. Is this a pulsed eddy thickness gauge or the traditional sine wave eddy current?

risotto
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what material do you use for your project body frame. thanks

biafra
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But that's not a measurement, an estimate at best. And there's no unit for the result. How can you switch to aluminum? You have a huge display but it doesn't show any information. Shouldn't a device like that work with an ultrasonic sensor? And the coil should be shielded, maybe you can make an improvement. Yes, I'm a software tester.

SteveM