Flashcards in Lesson 9 Deck (12)
What does a large impedance between 2 medias produce?
A large IRC
What does perpendicular incidence depend on?
Acoustic impedance mismatch
- delta z
Sound beam hits the surface on an angle
What kind of transmission will oblique incidence have?
Either smaller or larger
What does it mean when the transmission are the same?
That the 2 mediums are the same, which results in same propagation speed
What 3 things will a single pulse have?
1. Incident pulse
2. Reflective pulse
3. Transmitted pulse
What are 3 angle measurements to consider?
1. Angle of incidence
2. Angle of reflection
3. Angle of transmission
Whats does transmitted angle change based on?
What is the change of propagation speed referred to as?
What is the relationship with the angles if c1
Angle i < angle t
What is the relationship with the angles if c1>c2?
Angle i > angle t