Signal transit time

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Meandering laid conductor tracks on a memory bar in order to adjust signal propagation times with parallel control.

In electrical engineering, the transit time is the difference in time between the entry of a signal into a ( causal ) system and its exit. The concept of the system is very broad here.

One example is the so-called gate delay , i.e. the time that passes when information is processed in a logic gate . This can be measured with ring oscillators . The gate delay determines the maximum frequency of the clock signal in computer systems. The so-called transit time tolerance calculation provides specific methods for determining transit times in networks .

The transit time of free-flying electrons determines the frequency in transit time oscillators such as magnetrons and klystons .

With high-performance radar , the magnetron is operated with very short, powerful pulses . Their length is defined by the signal propagation time in a coaxial cable .

One area that essentially deals with the transit time of electrical signals and their characteristics is time domain reflectometry .