aikavakio
Aikavakio, or time constant, is a measure of how quickly a dynamic system responds toward its steady state after a change in input. It characterizes the speed of the response in first-order systems and is widely used in electronics, control theory, and thermal processes to describe how fast a system reacts.
In electronics, the term is common for RC circuits. For a resistor R in series with a
For general first-order linear systems, the time constant sets the exponential rate at which the state variable
Applications span RC filters (low-pass and high-pass), charging and discharging processes, and many control and thermal
Examples include an RC network with R = 1 kΩ and C = 1 μF, yielding tau = 1