Transmission lines are the type of thing that seems to confuse beginners. After all, the truth that short-circuits can have limitless impedance as well as open-circuits can behave like a short is not intuitive at all!. That’s why we like [Tinselkoala]’s most current video that shows a great design of a transmission line. It assists to comprehend the line as inductors as well as capacitors in series-parallel connection.
Any pair of wires utilized to transmit electrical power have small amounts of inductance as well as capacitance. This is not a issue with DC or low-frequency AC, however when the frequency is sufficiently high, odd things begin to happen. The energy has a tendency to getaway as radio waves, as well as present shows from discontinuities such as connectors as well as cord joints. For this reason, transmission lines for high frequency signals utilize specialized building to lessen those impacts as well as minimize power losses.
[Tinselkoala] has developed a design of a transmission line utilizing coils as well as capacitors to simulate the inductance as well as capacitance of the line, with LED’s put between the coils. He feeds the system with the signal generator with frequencies from 10 kHz to 1 MHz. In his words, they act as basic “visual voltmeters” to show the peaks as well as nodes of the standing waves of voltage in the line.
It is fairly basic to develop your own version if you want to explore this interesting subject. You will only requirement some magnet wire, capacitors, resistors as well as LED’s. If the subject seems fascinating to you, here you can discover an exceptional introduction to transmission lines.