Pass Bands

[em101]

I am trying to test the concept of using the waveguide technique to pass EM waves though a metallic pipe filled with fluids. I wanted to know if there is any device could may have let’s say 2 channels. So I could connect the 2 channels to the opposite ends of the pipe.

One channel could be an output channel that outputs the signal at a certain frequency.

And the other channel tries to receive the signal at the same frequency.

 

Will the same device allow me to sweep through a huge range of frequencies, and then let me know which frequency ranges worked and which did not work.

 

Thank you.

[Erasmus00]

Some oscilloscopes have frequency generators built in, but this is sort of rare. I'd suggest getting a waveform generator and an oscilliscope. You could use the oscilliscope to compare both the incoming and outgoing waveform, and a good waveform generator would let you look at many types of input.

 

If a waveform generator proves two expensive, you could probably build an adjustable "ring" circuit (something like an LRC circuit with a tunable capacitor) to generate pure harmonic oscillations. You'd need a transformer if you want to drive it off a wall outlet.

-Will