Application: Detection of faults in buried lines. A buried cable has water leaking into it, causing a change in its impedance. The impedance of the cable with water is not known. If the same results as in Problem 14.24 are obtained at the generator:
(a) Is it possible with the data given in Problem 14.24 to find the exact location of the leak?
(b) If yes, what is that location. If not, what is the minimum section that must be dug to ensure that the leak is found?
Problem 14.24
Application: Detection of faults in buried lines. A buried cable has been cut at an unknown point. A signal generator is connected to the cable input and the frequency is swept. The first maximum at the generator occurs at a frequency f1 and the first minimum at a frequency f2. What is the distance from the generator to the short if the phase velocity is known and equals vp0.