Figure 23.1 The figure shows ultrasound measurement. Interface In₁ is l₁ below the skin. The interface separates two media with acoustic impedances of Z₁ and Z₂.
-In Fig. 23.1, l₁ = 2.5 cm. What is the intensity loss of a signal before interface In₁? The sound attenuation coefficient is á_fat = 1.0 dB cm^-1 MHz^-1.

Question

Figure 23.1

The figure shows ultrasound measurement. Interface In₁ is l₁ below the skin. The interface separates two media with acoustic impedances of Z₁ and Z₂.
-In Fig. 23.1, l₁ = 2.5 cm. What is the intensity loss of a signal before interface In₁? The sound attenuation coefficient is á_fat = 1.0 dB cm^-1 MHz^-1.

Quizplus · Accepted Answer

The Answer of Figure 23.1 The figure shows ultrasound measurement. Interface In 1 is l 1 below the skin. The interface separates two media with acoustic impedances of Z 1 and Z 2 . -In Fig. 23.1, l₁ = 2.5 cm. What is the intensity loss of a signal before interface In₁? The sound attenuation coefficient is á_fat = 1.0 dB cm^-1 MHz^-1.

Figure 231 the Figure Shows Ultrasound Measurement