sähkömelu
Sähkömelu, often translated as electrical noise, refers to unwanted random fluctuations or disturbances in an electrical signal. These fluctuations can originate from various sources, both internal and external to an electronic system. Internal sources include the thermal motion of electrons within conductors (Johnson-Nyquist noise) and the random emission of electrons in semiconductor devices (shot noise). External sources can include electromagnetic interference from other electronic devices, radio frequency interference, and even cosmic radiation.
The presence of sähkömelu can significantly degrade the performance of electronic circuits and systems. It can
Engineers employ various techniques to mitigate the effects of sähkömelu. These include shielding electronic components to