Lab 6 - Solutions - EE 330 Lab #6 Solution Spring 2007 The...

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EE 330 Lab #6 Spring 2007 Solution The Thracian Tomb Objectives: To learn about the application of electromagnetic waves to probing the subterranean recesses. Work: 1. The receiver is buried at 2 = known d m and using calread the following values for the received signal, R E , and the time interval, τ , are obtained: 9 . 180 = R E mV/m, 20 = ns. 2. The attenuation constant, α , is determined from the relation between the emitted by the transmitter signal, T E , and the received signal, R E : known d T R e E E - = 05 . 0 9 . 180 200 ln 2 1 ln 1 = = = R T known E E d m -1 The speed, v , of the wave in earth is obtained from the time the signal needs to travel from the transmitter to the receiver: 8 9 10 10 20 2 = × = = - d v m/s 3. The phase constant, β , is related to the phase velocity: π ϖ 6 10 10 300 2 2 8 6 = × = = = v f v m -1 4. Using (6.55), 2 2 2 1 1 1 1 1 1 1 2 2 + + = + + + + = ε ω σ
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This note was uploaded on 10/01/2008 for the course EE 330 taught by Professor Tofighimohammad- during the Spring '08 term at Pennsylvania State University, University Park.

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Lab 6 - Solutions - EE 330 Lab #6 Solution Spring 2007 The...

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