lämpökohinaan
Lämpökohina, also known as thermal noise or Johnson-Nyquist noise, is a fundamental type of random electrical noise that occurs in electronic conductors due to the thermal agitation of charge carriers. This agitation causes random movements of electrons within the conductor, leading to fluctuating voltages and currents. The phenomenon is present in all conductive materials at temperatures above absolute zero.
The magnitude of thermal noise is directly proportional to the temperature of the conductor and the bandwidth
Thermal noise is a significant factor in the performance of electronic devices, particularly in applications requiring