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Sensing Skin is present

hasher

Hi guys

 

I am working on a project that  involves detection of skin (and hair). The sensor should be in such a way that it should differentiate human skin from other objects like wood,dirt . Is there a commercial sensor on the market that does this ?

 

 

Thanks Paul

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  • I don't know how you would physically attach this to an animal, but as mentioned by above, you cold use capacitance sensing. If 2 plates of a capacitor are separated by a few inches and another animal comes in fairly close contact with both you can easily detect a difference in capacitance between the plates. The plates could simply be insulated wires. There would be a maximum capacitance range due to the animal wearing the circuit and a close encounter would increase it. I could also imaging some small circuit module the size of a match book hanging off an animal that included the counting circuit as well as the sensor and battery. When it gets "sandwiched" it would know it. Check this road test to get an idea of sensitivity.

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  • I don't know how you would physically attach this to an animal, but as mentioned by above, you cold use capacitance sensing. If 2 plates of a capacitor are separated by a few inches and another animal comes in fairly close contact with both you can easily detect a difference in capacitance between the plates. The plates could simply be insulated wires. There would be a maximum capacitance range due to the animal wearing the circuit and a close encounter would increase it. I could also imaging some small circuit module the size of a match book hanging off an animal that included the counting circuit as well as the sensor and battery. When it gets "sandwiched" it would know it. Check this road test to get an idea of sensitivity.

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