Attenuation coefficient of water

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SUMMARY

The attenuation coefficient of water for ultrasound is established at 0.0472 Np m–1 (MHz)–2. This value can be converted to dB/cm/MHz–2 using appropriate conversion tools available online. The term "Np" refers to Neper, which is a unit used to describe attenuation loss. For further details on Neper, refer to the provided Wikipedia link.

PREREQUISITES
  • Understanding of ultrasound physics
  • Familiarity with attenuation coefficients
  • Knowledge of unit conversions, specifically between Neper and decibels
  • Basic research skills to find online conversion tools
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  • Research the conversion formulas between Neper and decibels
  • Explore the physical principles of ultrasound propagation in water
  • Learn about the significance of attenuation coefficients in medical ultrasound applications
  • Investigate online tools for converting between different units of measurement
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Students and professionals in acoustics, biomedical engineers, and anyone involved in ultrasound technology and its applications.

lavster
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I have read that the attenuation of water (for ultrasound) is 0.0472 Np m–1
(MHz)–2.

What is this in dB/cm/MHz^-2 ? What is Np?

thanks
 
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Np = Neper, its another way of describing attenuation loss

see this wiki for a longer explanation
http://en.wikipedia.org/wiki/Neper

there's sure to be converters on the net to do the conversion between Neper and dB
Google is your friend :)

Dave
 
thanks :)
 

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