The setup shown in the picture above is used to measure the thickness of the water layer in a glass container. The time history of the pulse echoes (i.e., A-Scan) is shown at the bottom of the figure. (a) What is the source of the first echo? (b) What is the source of the second echo? (c) What would be the time delay between the two echoes? (d) Assume the incident ultrasound power is A W/m', please calculate the amount of power reaching the water-glass interface.
The setup shown in the picture above is used to measure the thickness of the water layer in a glass container. The time history of the pulse echoes (i.e., A-Scan) is shown at the bottom of the figure. (a) What is the source of the first echo? (b) What is the source of the second echo? (c) What would be the time delay between the two echoes? (d) Assume the incident ultrasound power is A W/m', please calculate the amount of power reaching the water-glass interface.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:(3)
US Transducer
(10 MHz)
A W/m2
Water
Air
Glass
1 cm
The setup shown in the picture above is used to measure the thickness of the water
layer in a glass container. The time history of the pulse echoes (i.e., A-Scan) is shown at
the bottom of the figure.
(a) What is the source of the first echo?
(b) What is the source of the second echo?
(c) What would be the time delay between the two echoes?
(d) Assume the incident ultrasound power is A W/m, please calculate the amount of
power reaching the water-glass interface.
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