Standard depth of penetration formula

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Waves - Maximum Penetration Depth for Ultrasound - Physics Stack Exchange

How do you define the maximum penetration depth of an ultrasound? I'm presumptuous it norm the depth at which the wave has faded to a foreordained bittie percentage of the original intensity of the secondary beam? Yes it is habitual once talk around penetration length to stingy the length once the degree has dropped to 36.8% of its surface value.

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Calculator for skin effect depth

) for public conducting materials using the formula and data point referenced below .

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