Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-fingerprinting-422b377ebc8c

What do ultrasound fingerprint scanners use?

High frequency sound waves.

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  1. A digital camera
  2. High frequency sound waves ✔
  3. Electric current

Why: Ultrasound scanners use high frequency sound waves to penetrate the outer skin layer.

Huh, didn't know that: Ultrasound scanners use high frequency sound waves to penetrate the outer skin layer.

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References

Answer: High frequency sound waves. Ultrasound scanners use high frequency sound waves to penetrate the outer skin layer.

  1. Fingerprint en.wikipedia.org/wiki/Fingerprint
    Ultrasound fingerprint scanners use high frequency sound waves to penetrate the epidermal (outer) layer of the skin.
    Checked 2026-11-07.

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