Ef152-lec-3-4 - Module 3 Lecture 4 waves add together Example Oil Exploration Seismic reflection is a common method to find underground oil

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EF 152 Spring, 2009 Lecture 3-4 1 Module 3, Lecture 4 • ______________: waves add together •Ob s ta c le ± ________: “echo” ± ___________ ± ___________ remains the same EF 152 Spring, 2009 Lecture 3-4 2 Example: Oil Exploration Seismic reflection is a common method to find underground oil deposits. A seismic wave is generated (either by dropping a weight or an explosion), it reflects off the oil deposit, and the time to get to a detector is recorded. Oil Deposit x D Source Detector Determine the travel time of the wave, assuming a constant speed, v . EF 152 Spring, 2009 Lecture 3-4 3 Oil Deposit x 3 D Source Detectors Plot t 2 vs x 2 x 1 x 2 2 2 2 2 + = x D v t t 2 x 2 EF 152 Spring, 2009 Lecture 3-4 4 Waves: Interference ___________: displacements in same direction
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EF 152 Spring, 2009 Lecture 3-4 5 Standing Waves • Results from superposition of two or
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This note was uploaded on 04/07/2009 for the course EF 152 taught by Professor Ab during the Spring '08 term at University of Tennessee.

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Ef152-lec-3-4 - Module 3 Lecture 4 waves add together Example Oil Exploration Seismic reflection is a common method to find underground oil

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