https://www.youtube.com/watch?v=pXWbdxOAuDs
An absolutely S-tier explanation of the smith chart, and also the concept of reflectance through a wire.
There's a device called a Time Domain Reflectometer that will induce a small pulse on a line and use this characteristic to listen for reflections, and that represents changes in resistance over a line. In this way, you can find damage in electrical cables without going inside of them. The same concept works in optical systems, so there are also optical time domain reflectometers which similarly send a light pulse out and look for light reflected back.
An absolutely S-tier explanation of the smith chart, and also the concept of reflectance through a wire.
There's a device called a Time Domain Reflectometer that will induce a small pulse on a line and use this characteristic to listen for reflections, and that represents changes in resistance over a line. In this way, you can find damage in electrical cables without going inside of them. The same concept works in optical systems, so there are also optical time domain reflectometers which similarly send a light pulse out and look for light reflected back.
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