Define the signals in time domain, Electrical Engineering

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Define the Signals in Time Domain?

The time domain is the type of visualization that most people are familiar with. This method shows variations of a signal with time. The most common time domain instrument is the oscilloscope, which has graduations of volts on the Y-axis and graduations of time on the X-axis. A pure sine wave is shown on the left side of the above diagram. The signal has a frequency (the number of times that the signal repeats itself in a second) and a period (the time duration of one complete signal cycle).

1881_Time Domain.png

Frequency and period are not diverse quantities, but diverse methods of describing the time measurement of the same signal. The figure shows two waveforms. The lower one has a higher frequency (more cycles per second) and a shorter period (less time to complete one cycle). Both of the signals have similar amplitude.


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